Is Environmental Sustainability Taking a Backseat in China after COVID-19? The Perspective of Business Managers

China’s quick economic recovery from COVID-19 has presented a narrow but vast opportunity to build an economy that is cleaner, fairer, and safer. Will China grab this opportunity? The answer rests with both business managers and the government. Based on a questionnaire survey of 1160 owners and managers of companies headquartered in 32 regions of China and covering 30 industries, this paper explores how COVID-19 has impacted Chinese business, especially with regard to the three dimensions of sustainability (economic, social, and environmental). The results suggest that Chinese companies’ sustainability priorities have been shifted towards the social dimension both during COVID-19 and into the post-pandemic phase, regardless of the type of ownership, company size, or market focus (domestic, overseas, or mixture of the two). However, all types of company prioritize the need for economic sustainability in the post-pandemic phase and in relative terms the importance of the environmental dimension has been diminished. Hence the potential for a post-pandemic environmental rebound effect in China is clear. But it does not have to be the case if Chinese businesses and the government take actions to change its recovery plans to embrace the environmental dimension of sustainability. The paper puts forward some suggestions and recommendations for businesses and the government.


Introduction
The new coronavirus  has posed an unprecedented challenge to global sustainable development (SD). As of December 2020, more than 65 million people have the disease and more than 1.5 million have died from it [1]. Strategies such as large-scale coronavirus screening tests, stringent hygiene protocols, isolation, and social distancing have been adopted by governments worldwide to fight the virus, and these have resulted in significant negative economic impacts in many countries. The whole world has almost been brought to a standstill as economic growth faltered and international transport greatly reduced, although on the positive side these have resulted in a significant reduction in global carbon emissions [2]. However, some argue that the drop in CO 2 emissions is just temporary as it does not reflect any significant structural change in the economic, transport, or energy system [3], and unless there is such change, it will be hard to avoid the environmental rebound effect when COVID-19 is over [4,5]. At the same time, other environmental issues such as waste recycling and water contamination have been neglected during the pandemic [2] and new types of pollution have originated from the large-scale manufacture and distribution of COVID-19 protective gear such as face masks [6].

Environmental Rebound Effect
The rebound effect is generally defined as the difference between the expected and actual environmental gains from an efficiency increase after the implementation of new technologies or other measures [4,20]. A good example of a rebound effect is found when a technological improvement in vehicle fuel efficiency makes driving cheaper but the saving is often offset by driving faster or further than before. Hence, resource efficiency may not reduce the use of resources and may even generate the contrary. Empirical rebound studies often try to capture the secondary effects of policies and behaviors. For example, although the use of information and communications technologies (ICT) was thought to be environmentally beneficial as it reduces road traffic and saves commuting time, Gossart [21] provided evidence of the rebound effect related to ICT and suggested ways of overcoming rebound. Of course, the magnitude of any rebound effect varies depending on cultural and structural context. For example, although the industrial Internet of things (IIoT) could potentially improve resource efficiency by establishing highly digitized, interconnected, self-regulating, and decentralized industrial value chains [22,23], it could rebound. By comparing China and Germany, Muller and Voigt [22] found the introduction of IIoT would cause more serious job loss problems in China than in Germany, and greater data security concerns in Germany than in China, while both countries would equally face a problem over skill shortages.
Various policies and measures taken by countries to contain the COVID-19 pandemic have caused abrupt changes in business operation, consumption, social interaction, and so on, and these changes have led to improvements in some environmental indicators such as air quality and greenhouse gas emissions. But will a rebound effect take place such that these changes are not permanent? Will the environmental improvement last in the future when the pandemic is over? A further question is whether the increased popularity of ICT and digitalization spurred by COVID-19 may backfire, as indicated by Muller and Voigt [22] and Gossart [21].

Sustainable Development in China
The principles of sustainable development have deep roots in China. The earliest ideas relating to sustainable development were recorded during the Xia dynasty (2070-1600 BC) in the Yellow River area in the form of religious beliefs. Back then, people respected the mountains and rivers in the same way they did their spiritual icons [24]. Chinese traditional philosophies such as Confucianism, Taoism, and Yin-Yang contain elements that are fundamental to sustainable development. For example, the basic foundation of Confucianism is the harmony between humans and nature while Taoism believes that all creatures are created by nature and advocates that following nature and taking no action is the best action to take [25]. Sustainable development also had an important place in Chairman Mao's administration. He called for green policies because they would benefit agriculture, industry, and other aspects of society [24]. In September 2015, President Xi Jinping attended the UN Sustainable Development Summit and joined other world leaders in adopting the program entitled Transforming Our World: the 2030 Agenda for Sustainable Development, which opened a new era for the undertaking of global sustainable development and charted the course for national development and international development cooperation. At his various speeches to international audiences, Xi said "green mountains and clear water are as good as mountains of gold and silver." Nonetheless, despite these historical roots and claims to be in the "driving seat" when it comes to tackling climate change, the question remains as to whether China will continue its leadership in sustainability during COVID-19; will climate change issues soon be forgotten after the pandemic as the emphasis shifts in favor of economic development?

Ownership, Size, Slack Resources, and Sustainability
Ownership has been widely discussed as a factor which could potentially influence a company's pursuit of social and environmental responsibility [26]. Based on the Shanghai National Accounting Institute (SNAI) CSR Index, Li and Zhang [27] explored whether and how ownership structure affects corporate social responsibility (CSR) in emerging markets, and found that the stronger the state's controlling of a firm is then the better the firm's social and environmental performances. Zhang et al. [28] investigated corporate social responsibility of a group of Chinese state-owned enterprises (SOEs) and private-owned firms and found that Chinese SOEs are more environmentally responsible than private owned firms. Oh et al. [29] employed a sample of 118 large Korean firms and found a significant and positive relationship between CSR ratings and ownership of institutions (which are under strong influence of the Korean government). However, Oh et al. [29] also found foreign invested firms have relatively high CSR ratings and this result was confirmed by Lee et al. [30] who conducted a study using panel data of the Korea Economic Justice Institute (KEJI) Index and found a positive correlation between CSR performance and foreign ownership.
Size has also been discussed as a factor that may influence a firm's social and environmental engagement. A positive relationship between firm size and social and environmental engagement has been found for firms in developed countries by Fry and Hock [31], Fombrun and Shanley [32], Pava and Krausz [33], McWilliams and Siegel [34], and Elsayed [35]. In recent years, this relationship has also been explored in emerging markets. For example, Zhang et al. [28] found that larger companies engage more in social and environmental responsibility in China than do smaller ones. The same conclusion was reached by Li and Zhang [27] in China and Muller and Kolk [36] in Mexico. Slack resources are the potentially utilizable resources that can be diverted or redeployed for the achievement of organizational goals. Slack resource theory suggests that because more profitable firms have more organizational slack (financial and other), they are likely to be more committed to CSR participation [37]. Based on slack resource theory, Preston and O'bannon [38] proposed an available funds hypothesis which suggests a positive relationship between a company's profitability and its social performance, i.e., companies with better financial performance would contribute more to fund discretionary projects. The available funds hypothesis was also found to be the case for companies in China [28].

The Impact of COVID-19
Understandably, recent publications on COVID-19 have focused mainly on medical and epidemiological dimensions of the pandemic, including treatments and vaccine development [39][40][41]. Some have noted the temporary improvement in environmental quality due to virus containment measures but have also expressed concerns about a possible rebound effect after the pandemic [2][3][4][5]42,43]. A few studies have looked at the economic and social impacts of COVID-19, especially on businesses. Barreiro-Gen et al. [7] surveyed 653 organizations internationally to analyze how the outbreak of COVID-19 had affected their sustainability priorities and they found that there had been a shift towards emphasizing the social dimension for most organizations while the environmental dimension had declined in importance. As a result, Barreiro-Gen et al. [7] suggested measures to avert the possible post-pandemic environmental rebound effect. Bartik et al. [44] explored the impact of COVID-19 on small businesses in the US and found that mass layoffs and closures occurred just a few weeks into the crisis and the risk of closure was negatively associated with the expected length of the crisis. Bartik et al. [44] also found that small businesses in the US are financially fragile and many of them anticipated problems such as bureaucratic hassles when seeking COVID-19 related funding.
Zabaniotou [45] considered COVID-19 as proof of an unsustainable human civilization and linked the pandemic to ecological sustainability and resilience. Zabaniotou [45] proposed a humanistic approach as a solution, based not only on virus containment strategies but also an ecological balance. A framework based on resilience was also proposed by D'Adamo and Rosa [46] as a post-pandemic recovery strategy.
However, few analyses to date have looked at the impacts of COVID-19 on sustainability in China especially from the point of view of businesses. This paper aims to explore the impacts COVID-19 may have had on sustainable development in China over both the short-term and long-term from the perspective of business. In particular, it sets out the results of research that sought to investigate whether and how priorities have changed among the three pillars of sustainable development during and post COVID-19 for companies with different ownerships, i.e.,: Domestic individual-owned company

Hypothesis
There are various types of businesses in China. Based on the ownership, they include mainly state-owned enterprises (SOEs), private-owned companies, foreign invested enterprise (FIE), and individual-owned companies. SOEs are companies that are owned and run by the Chinese government or stock companies having the state as the dominant stockholder. An FIE is a company that is invested solely by a foreign company (including companies based in Hong Kong, Macau, and Taiwan) or created through a partnership between foreign and Chinese investors. A Chinese domestic private-owned company is a Chinese company that is neither an SOE or an FIE and hires eight or more employees. An individual-owned company is a company that is neither an SOE nor an FIE and hires less than eight employees [47]. Both private-owned and individual-owned companies focus on domestic and overseas markets, with the larger companies being more orientated towards overseas. Because of the different stances of different types of companies in China, it is assumed that their sustainability priority changes would be different as a result of COVID-19. Based on the previous literature reviewed in Section 2.3, two hypotheses can be proposed: Hypothesis 1 (H1). SOEs and FIEs prioritize social sustainability and environmental sustainability more than domestic private and individual owned companies after COVID-19.

Hypothesis 2 (H2).
Bigger companies prioritize social and environmental sustainability more than small companies after COVID-19.
However, there could be a complication arising from the market focus of the company. Although the Chinese domestic market was hit hard at the beginning of the pandemic (February and March) when COVID-19 was mostly spreading within China, the overseas market was affected badly from March onward when the virus was spreading rapidly within Europe, US, and other parts of the world. Understandably, companies that have both domestic and overseas markets can avoid the negative economic impact better than companies that have a single market focus. Such companies with a diverse market focus could sell their products to overseas consumers in February and March while markets in China were subdued, but then switch to selling their produce/services in China after March once overseas markets had declined. Hence, based on slack resources theory and available funds hypothesis, a third hypothesis could be framed as:

Hypothesis 3 (H3).
Companies that enjoy both domestic and overseas markets prioritize social and environmental sustainability more than companies that focus solely on either domestic market or overseas market after COVID-19.

Data Collection
After a pilot study in June 2020, a questionnaire was finalized to explore if companies in China had changed their views of sustainable development. The questionnaire had a number of parts, including the demographic characterization of the surveyed companies, the general impact that COVID-19 had on them, how they coped with the impact, and the changing priority of the companies regarding the three-pillars of sustainable development. The targeted respondents were company owners and other managers across China, and the survey was designed to span all four types of company noted above as well as different sizes and market orientations. The survey was carried out online through a Chinese online survey platform Wenjuanxing in July 2020 with link to or QR code of the questionnaire being sent to potential respondents. A total of 1178 questionnaires were returned, of which 1160 (98%) were considered valid in the sense that they came from different IP addresses, had a clear indication of their company ownership and the questionnaire had been completed in no less than 207 s (the shortest time tested by the authors to complete the questionnaire). There was no reward for completing the questionnaire, so respondents had little incentive to attempt multiple returns. While it was possible for a single respondent to complete multiple returns from a number of IP addresses, it would seem unlikely in practice.
Respondents' views of the importance of the three dimensions of SD (i.e., social, environmental, and economic) during three periods of COVID-19 (i.e., pre, during, and post) were assessed based on a five-point Likert scale with 1 being the least important, 5 being the most important, and the others are in the middle-the higher the score, the higher the perceived importance of the dimension. The average change (mean change) of the scores at later stages of COVID-19 compared to earlier stages (i.e., during vs. pre, post vs. during, and post vs. pre) were calculated using the following equation: Mean change (environmental sustainability, post vs. pre) = Mean score (environmental sustainability, post) − Mean score (environmental sustainability, pre) .
Similarly, for other changes in mean score: Mean change (environmental sustainability, during vs. pre) , Mean change (environmental sustainability, post vs. during) , Mean change (social sustainability, post vs. pre) , Mean change (social sustainability, during vs. pre) , Mean change (social sustainability, post vs. during) , Mean change (economic sustainability, post vs. pre) , Mean change (economic sustainability, during vs. pre) , and Mean change (economic sustainability, post vs. during) .
If the mean change (environmental sustainability, during vs. pre) was bigger than zero, then environmental sustainability was assumed to have been prioritized more during COVID-19 [7]. If the mean change (environmental sustainability, post vs. during) was bigger than zero, then environmental sustainability was assumed to have been prioritized immediately after the pandemic. If the mean change (environmental sustainability, post vs. pre) was bigger than zero, then environmental sustainability was assumed to have been prioritized over the longer term after the COVID-19 impact had ended. The bigger the mean change, the higher the level of the prioritization. The same interpretations were applied to the other two dimensions of SD.

Data Analysis
SPSS 24 was employed to store and analyze the data. Crosstab and Chi-square tests were employed to test the correlation between company ownership, size, age, and market focus. Welch's ANOVA was used to test changes in priority of sustainable development during and post COVID-19 for Chinese companies with different ownership, size, and market focus. As the data comprised scores, and these could not be assumed to be normally distributed, Welch's ANOVA was deemed to be the best alternative and does have some advantages compared to non-parametric tests such as Kruskall-Wallis. Also, Chi-square and Welch's ANOVA are relatively straightforward to implement and interpret compared to alternative approaches such as regression or factor analysis. Table 1 shows the profiles of the surveyed companies based upon the answers provided by respondents. Table 1a presents the distribution of the sample of companies based on four main company categories:

Company Profile
• Ownership of the company (domestic private-owned company, SOE, FIE, and domestic individual-owned company) • Number of employees (1000 and above, 300-999, 20-299, and 1-19) • Age (less than 4 years, 4-10 years, 11-20 years, and older than 20 years) • Market focus (overseas-focused, domestic-focused, mixed but mostly domestic-focused, and mixed but mostly export-focused) Also shown in Table 1 are the geographical distribution of the companies in China (Table 1b) and their main area of activity (manufacturing, wholesale/retail, etc.; Table 1c).
Out of 1160 companies, 70.5% of them (818) were private-owned, 195 (16.8%) were SOEs, 76 (6.5%) were FIEs, and 71 (6.1%) were individually-owned. Half of the companies (588) had between 20 and 299 employees, a quarter (292) had between 300 and 999, 157 (13.5%) had 1000 employees and more, while only 123 (10.6%) had less than 20 employees. In terms of age, almost half of them (554) had existed for between 4 and 10 years, 262 (22.6%) had been around for between 11 and 20 years, and 119 (10.2%) was established within the past 4 years. Based on where the customers were mostly located, 65 (5.6%) of the companies saw themselves as overseas-focused, 201 (17.3%) were domestic-focused, one third of them (380) had both domestic and overseas customers with the domestic market being the main focus, while 514 (44.3%) also enjoyed both markets but were mostly overseas-focused.

Ownership, Characterization, the General Impact of COVID-19, and Current Business Resumption
Generally speaking, companies with different ownerships have been impacted by COVID-19 to different extents. SOEs would seem to have been the least impacted with 28.7% of respondents in that category claiming that the company had been impacted in a 'major' way. The equivalent figure for FIEs was 31.6%. Individual-owned and private-owned companies appear to have been hit much harder by the pandemic with 54.9% and 43.5% (respectively) of respondents from those categories claiming that their companies had been majorly impacted by the pandemic. This is perhaps to be expected given that SOEs are state-backed and perhaps have better access to bank loans and state support. However, private-owned companies resumed their business almost as fast as SOEs with 34.4% of private-owned companies recovering more than 75% of their production capacity (35.9% for SOEs), followed by FIEs (30.3%). Individual-owned companies recovered the slowest with only 12.7% of them recovering more than 75% of their production capacity. Perhaps this is partly related to the speed at which China was able to bring the outbreak under control, but it may also be related to the smaller size of individually owned companies which means that they find it harder to lever support from banks and the state.  Table 3 indicates that companies with different ownerships have statistically significant different social, economic, and environmental priorities before, during, and after COVID-19 (all F-values from Welch's ANOVA were statistically significant at p < 0.01), and there is an increasing trend of means in each of the three dimensions of SD following the stages of COVID-19. For example, for private-owned companies, the mean score for the social dimension of SD increased from 3.30 prior to COVID-19 to 4.09 when this research was conducted in July 2020 (during the pandemic), and to 4.34 after the pandemic had ended in China. Clearly, COVID-19 has made companies with all types of ownership realize the importance of all three dimensions of SD. However, the highest mean scores in the table across all four types of company are for the economic dimension of SD in the post-COVID-19 stage (shaded cells in Table 3), indicating the importance of regaining economic strength over the longer term after the pandemic. A Welch's ANOVA test was performed on the scores for the dimensions of SD over the three periods of COVID-19 (pre, during, and post) and the results are shown in Table 4. In order to more clearly illustrate the trends in Table 4, Figure 1 presents the changes in the mean scores between the periods of COVID-19. Note: ***: statistically significant at p < 0.01, **: statistically significant at p < 0.05, the shaded cells are the highest mean scores in the post-COVID-19 stage.

Sustainability Priority Change for Companies Having Different Types of Ownership
(shaded cells in Table 3), indicating the importance of regaining economic strength over the longer term after the pandemic. A Welch's ANOVA test was performed on the scores for the dimensions of SD over the three periods of COVID-19 (pre, during, and post) and the results are shown in Table 4. In order to more clearly illustrate the trends in Table 4, Figure 1 presents the changes in the mean scores between the periods of COVID-19. The results in Table 4 indicate that, for SOEs, there exists a significant difference among three dimensions of SD for pre-and post-COVID-19 periods, but there is no difference among dimensions of SD for the period during COVID-19, indicating the confusing state of Chinese SOEs during the pandemic. Figure 1a indicates that for Chinese SOEs, social sustainability was the most prioritized during the pandemic with a mean change (social responsibility, during vs. pre) in score of 0.78, but it was less prioritized than economic sustainability immediately after the pandemic (0.28 vs. 0.31); however, it was the most prioritized in a longer term after the pandemic comparing to economic and environmental sustainability (1.06 vs. 0.82 vs. 0.91). It would appear from Figure 1 that over the longer term SOEs prioritize social sustainability more than other companies (with a mean change of 1.06), followed by private-owned companies (1.04), individual-owned companies (0.98), and FIEs (0.88). It is not surprising given that Chinese SOEs have reportedly donated RMB 5.8 billion to help fight COVID-19, accounting for 47% of the total amount of corporate donations China received in response to COVID-19, while Chinese domestic private companies contributed 41% and FIEs only 12% [48]. Chinese SOEs' generosity in philanthropy has been well documented and the reason for their generosity is that they are highly integrated with the state and thus have looser budget constraints [49]. However, the motive of Chinese domestic private companies' donations, especially when facing a large-scale crisis, is mostly related to the protection of their property rights and nurturing of political connections, which in turn would lead to better profitability [50]. However, even with the long-term priority shift to the social dimension of SD after the pandemic, economic sustainability has remained absolutely essential post-COVID-19 for Chinese SOEs (4.47, Table 4), implying the falling importance of environmental sustainability at the post-COVID-19 era. Hence it would seem that Chinese SOEs are not prioritizing environmental sustainability as a result of COVID-19. Table 4 also indicates that there exists a statistically significant difference among dimensions of SD for each stage of COVID-19 for Chinese domestic private-owned companies (p < 0.01), indicating a clear shift of priority of SD along with the development of COVID-19. In terms of the dynamics, Figure 1b indicates that for Chinese domestic private-owned companies, social sustainability was the most prioritized during the pandemic, with a mean change (social sustainability, during vs. pre) equal to 0.79, followed by environmental sustainability (0.63) and economic sustainability (0.62). But the priority shifted to environmental sustainability immediately after the pandemic (0.28 vs. 0.25 vs. 0.23).
However, the long-term priority after the pandemic shifted back to social sustainability, followed by environmental sustainability, then economic sustainability (1.04 vs. 0.91 vs. 0.85). However, even with the priority shift to social sustainability after the pandemic, the absolute importance of the economic aspect of sustainability for this group of companies is clear with the highest mean score (4.48, Table 4). As with the SOEs, this indicates that environmental area of SD is also the least important dimension of sustainability for Chinese domestic private-owned companies.
The results in Table 4 for FIEs indicate that there is a statistically significant difference among three dimensions of SD for the pre-COVID-19 period. But such difference does not exist for periods amid and post the pandemic. Figure 1c presents the mean changes in score for the FIEs. Clearly, during the pandemic, social sustainability has gained priority (0.66), more than environmental sustainability (0.55), while the least prioritized one is economic sustainability (0.26). But immediately after the pandemic, the priority shifted to economic aspect of SD with the mean change (economic sustainability, post vs. during) being 0.33, followed by environmental sustainability (0.23) and social sustainability (0.22). However, the long-term priority after the pandemic returned to the social area of sustainability with the mean change (social sustainability, post vs. pre) being 0.88, followed by environmental sustainability (0.78) and economic sustainability (0.59). Hence it would seem that FIEs in China were uncertain what to prioritize during and post the pandemic. However, with the highest mean scores pre-, during, and post-COVID-19, economic sustainability remains the all-time essential for FIEs operating in China.
For the Chinese domestic individual-owned companies, Table 4 suggests that there is no statistically significant difference among the dimensions of SD for each COVID-19 stage. However, just like other types of companies, Chinese domestic individual-owned companies see economic sustainability as essential throughout the pandemic stages (pre, during, and post, Table 4). However, in terms of the changes in score, Figure 1d indicates that Chinese domestic individual-owned companies prioritized social sustainability the most during COVID-19 with mean change (social sustainability, during vs. pre) being 0.64, followed by economic sustainability (0.55) and environmental sustainability (0.53). The most prioritized immediately after COVID-19 is environmental sustainability (0.42), followed by social sustainability (0.34) and economic sustainability (0.30). But over the longer term, the individual-owned companies prioritized social sustainability the most (0.98), followed by environmental sustainability (0.95) and economic sustainability (0.85).
Based on these results, Figure 2 provides a picture of the longer-term post-pandemic priority and post-pandemic business essential for companies with different ownership. It is clear that hypothesis 1 has failed. Chinese SOEs and private companies have responded to COVID-19 by prioritizing social sustainability more during the pandemic and also in the longer term following the pandemic. By way of contrast, FIEs and individual-owned companies have prioritized social sustainability less since the outbreak of COVID-19 ( Figure 2a). This result is consistent with the findings of Li and Zhang [27], Zhang et al. [28], and Oh et al. [29] that state ownership has a positive relationship with social performance. However, the result is contrary to those of Oh et al. [29] and Lee et al. [30] who found that foreign invested firms are good CSR performers. It is a disappointing finding considering the large number of FIEs in China (960,725 by the end of 2018 [51]), whose contribution to social and environmental development would make a difference to China's long-term sustainability.
However, even with a priority for the social and environmental dimensions, economic sustainability is considered essential by all types of companies post-COVID-19, and this is more obvious for SOEs, domestic private-owned companies, and FIEs (Figure 2b), suggesting that environmental sustainability is the only one of the three dimensions that has been overlooked after the pandemic. This confirms the concerns of a post-pandemic environmental rebound effect as mentioned by Freire-Gonzalez and Vivanco [4], McCloskey and Heymann [5], Wang and Su [42], and Bao and Zhang [43]. It is even more worrying considering the bigger influence of SOEs, domestic private-owned companies, and FIEs in China's long-term sustainability. Sustainability 2020, 12, x FOR PEER REVIEW 16 of 25 However, even with a priority for the social and environmental dimensions, economic sustainability is considered essential by all types of companies post-COVID-19, and this is more obvious for SOEs, domestic private-owned companies, and FIEs (Figure 2b), suggesting that environmental sustainability is the only one of the three dimensions that has been overlooked after the pandemic. This confirms the concerns of a post-pandemic environmental rebound effect as mentioned by Freire-Gonzalez and Vivanco [4], McCloskey and Heymann [5], Wang and Su [42], and Bao and Zhang [43]. It is even more worrying considering the bigger influence of SOEs, domestic private-owned companies, and FIEs in China's long-term sustainability.

Company Size Analysis
As noted in Table 2, company size is related to company type, with SOEs and FIEs being larger in terms of number of employees compared to the domestic private companies. But in order to pick up on any effects of company size, Table 5 presents the results of a Welch's ANOVA test using four categories based on company size. Large companies (mostly SOEs and FIEs) are defined as those having 1000 or more employees, medium companies are those having 300 to 999 employees, small companies are those having 20 to 299 employees, and micro-companies are those having 1-19 employees.
The results in Table 5 indicate that no matter what size the companies are, their social, economic, and environmental aspects of sustainability are statistically different before, during, and post COVID-19, with a clear increasing trend of the importance of all of them as the pandemic progressed. Again, the highest values go to the post-pandemic economic sustainability for companies of all sizes (shaded cells in Table 5). This is further evidence that although companies of all sizes are devoted to all areas of sustainable development, economic sustainability will still be essential in the postpandemic era. Figure 3 indicates that comparing to pre-COVID-19, big-, medium-, and small-sized companies prioritized social sustainability the most during the pandemic among three areas of SD with the mean changes (social sustainability, during vs. pre) being 0.68, 0.77, and 0.82, respectively (the left clusters of Figure 3), while micro-sized companies prioritized both social and economic sustainability during the same timeframe (both are 0.65). The priorities vary for the period between post and during COVID-19 (the middle clusters of Figure 3), while large companies prioritize economic area (with the mean change (economic sustainability, post vs. during) of 0.3), medium-sized companies prioritize social area (0.26), small and micro companies prioritize environmental area (0.29 and 0.41). However, comparing to pre-COVID-19 period, the post pandemic priorities are still social issues for companies of all sizes (the right clusters of Figure 3). But surprisingly, small companies (1.06) appeared to emphasize social sustainability the most, followed by medium-sized companies (1.03) and micro companies (0.97). Big

Company Size Analysis
As noted in Table 2, company size is related to company type, with SOEs and FIEs being larger in terms of number of employees compared to the domestic private companies. But in order to pick up on any effects of company size, Table 5 presents the results of a Welch's ANOVA test using four categories based on company size. Large companies (mostly SOEs and FIEs) are defined as those having 1000 or more employees, medium companies are those having 300 to 999 employees, small companies are those having 20 to 299 employees, and micro-companies are those having 1-19 employees.
The results in Table 5 indicate that no matter what size the companies are, their social, economic, and environmental aspects of sustainability are statistically different before, during, and post COVID-19, with a clear increasing trend of the importance of all of them as the pandemic progressed. Again, the highest values go to the post-pandemic economic sustainability for companies of all sizes (shaded cells in Table 5). This is further evidence that although companies of all sizes are devoted to all areas of sustainable development, economic sustainability will still be essential in the post-pandemic era. Figure 3 indicates that comparing to pre-COVID-19, big-, medium-, and small-sized companies prioritized social sustainability the most during the pandemic among three areas of SD with the mean changes (social sustainability, during vs. pre) being 0.68, 0.77, and 0.82, respectively (the left clusters of Figure 3), while micro-sized companies prioritized both social and economic sustainability during the same timeframe (both are 0.65). The priorities vary for the period between post and during COVID-19 (the middle clusters of Figure 3), while large companies prioritize economic area (with the mean change (economic sustainability, post vs. during) of 0.3), medium-sized companies prioritize social area (0.26), small and micro companies prioritize environmental area (0.29 and 0.41). However, comparing to pre-COVID-19 period, the post pandemic priorities are still social issues for companies of all sizes (the right clusters of Figure 3). But surprisingly, small companies (1.06) appeared to emphasize social sustainability the most, followed by medium-sized companies (1.03) and micro companies (0.97). Big companies appeared to place relatively less emphasis on social issues after the pandemic (0.95) as illustrated in Figure 4a. Hence, hypothesis 2 is proved to be false. This result is contrary to previous study results which suggest that bigger companies are more socially responsible than smaller companies either because big companies have more resources which can be used for social issues or because large companies face more public social scrutiny, and therefore must be more responsive to social issues [24,34,[52][53][54]. Maybe large companies were impacted so much by COVID-19 (97.5% of the big companies in the survey were negatively affected by the pandemic and the number for the whole sample is 96.8%) that they decided to withdraw from social responsibility.
Again, the economic dimension of SD remains essential for companies of all sizes, especially the medium and large companies (Figure 4b). This leaves the environmental side of SD to be the most vulnerable, another indication of post-pandemic environmental rebound effect. companies appeared to place relatively less emphasis on social issues after the pandemic (0.95) as illustrated in Figure 4a. Hence, hypothesis 2 is proved to be false.    This result is contrary to previous study results which suggest that bigger companies are more socially responsible than smaller companies either because big companies have more resources which can be used for social issues or because large companies face more public social scrutiny, and therefore must be more responsive to social issues [24,34,[52][53][54]. Maybe large companies were impacted so much by COVID-19 (97.5% of the big companies in the survey were negatively affected by the pandemic and the number for the whole sample is 96.8%) that they decided to withdraw from social responsibility.
Again, the economic dimension of SD remains essential for companies of all sizes, especially the medium and large companies (Figure 4b). This leaves the environmental side of SD to be the most vulnerable, another indication of post-pandemic environmental rebound effect.  Table 6 presents the score data based on the market focus (domestic, overseas, or mixtures of both) of the company. As noted earlier, the different types of company have different market focuses and there is a linkage ( Table 2) between the two. The results in Table 6 suggest that for all types of market focus the companies have increased their concentration on the three dimensions of sustainability as the COVID-19 pandemic progressed. In line with the previous analyses, economic sustainability emerges as having the greatest emphasis once the pandemic ends (shaded cells in Table  6). Figure 5 indicates that comparing to the pre-pandemic era, social sustainability has shown the largest change in priority during COVID-19 (the left clusters of Figure 5), especially for companies with mixed-market focuses (mean changes for both are 0.81), followed by domestic-focused companies (0.67) and overseas-focused companies (0.54). Comparing to the time during the pandemic, the post-pandemic priorities vary (the middle clusters of Figure 5), with economic sustainability being prioritized by overseas-focused (0.49) and domestic-focused (0.23) companies, and environmental sustainability being prioritized by companies with mixed but mostly overseas market-focused companies (0.30), and social sustainability being prioritized by overseas-focused companies (0.34). But the priority from pre-to post-pandemic is still social sustainability (the right clusters of Figure 5) with the lead being taken by the mixed but mostly domestic-focused companies  Table 6 presents the score data based on the market focus (domestic, overseas, or mixtures of both) of the company. As noted earlier, the different types of company have different market focuses and there is a linkage ( Table 2) between the two. The results in Table 6 suggest that for all types of market focus the companies have increased their concentration on the three dimensions of sustainability as the COVID-19 pandemic progressed. In line with the previous analyses, economic sustainability emerges as having the greatest emphasis once the pandemic ends (shaded cells in Table 6). Note: ***: statistically significant at p < 0.01, shaded cells are the highest mean scores for companies with different market focus. Figure 5 indicates that comparing to the pre-pandemic era, social sustainability has shown the largest change in priority during COVID-19 (the left clusters of Figure 5), especially for companies with mixed-market focuses (mean changes for both are 0.81), followed by domestic-focused companies (0.67) and overseas-focused companies (0.54). Comparing to the time during the pandemic, the post-pandemic priorities vary (the middle clusters of Figure 5), with economic sustainability being prioritized by overseas-focused (0.49) and domestic-focused (0.23) companies, and environmental sustainability being prioritized by companies with mixed but mostly overseas market-focused companies (0.30), and social sustainability being prioritized by overseas-focused companies (0.34). But the priority from pre-to post-pandemic is still social sustainability (the right clusters of Figure 5) with the lead being taken by the mixed but mostly domestic-focused companies (1.12), followed by mixed but mostly overseas-focused companies (1.05), solely overseas-focused companies (0.88), and then solely domestic-focused companies (0.86). (1.12), followed by mixed but mostly overseas-focused companies (1.05), solely overseas-focused companies (0.88), and then solely domestic-focused companies (0.86).   Therefore, the test of hypothesis 3 is passed. Indeed, possibly because of their better financial situation during the pandemic (38% of them were impacted badly while the number for the whole sample was 41%), companies with mixed markets prioritized social sustainability the most after the pandemic, followed by environmental sustainability. The levels of prioritization of mixed-market companies towards social and environmental sustainability are higher than companies that are solely overseas or domestic focused (Figure 6a). This finding may be explained by the slack resources theory [37] and available funds hypothesis [38]. However, all companies, regardless of their market focus, consider the economic dimension of sustainability as essential to their business. This is more obvious for overseas-focused companies and companies having a mixed market but more domestically-orientated ( Figure 6b). Environmental sustainability is the least likely to receive attention during the pandemic and in the longer term following the pandemic. Therefore, the test of hypothesis 3 is passed. Indeed, possibly because of their better financial situation during the pandemic (38% of them were impacted badly while the number for the whole sample was 41%), companies with mixed markets prioritized social sustainability the most after the pandemic, followed by environmental sustainability. The levels of prioritization of mixed-market companies towards social and environmental sustainability are higher than companies that are solely overseas or domestic focused (Figure 6a). This finding may be explained by the slack resources theory [37] and available funds hypothesis [38]. However, all companies, regardless of their market focus, consider the economic dimension of sustainability as essential to their business. This is more obvious for overseas-focused companies and companies having a mixed market but more domesticallyorientated (Figure 6b). Environmental sustainability is the least likely to receive attention during the pandemic and in the longer term following the pandemic.

Conclusions and Recommendations
In the research reported here the short and long-term impact of COVID-19 on sustainability are looked at from the perspective of 1160 business managers by investigating the changes of sustainability priorities during and post the pandemic, and three hypotheses have been tested. The results failed hypothesis 1 as social and environmental dimensions of sustainability are prioritized more by SOEs and private-owned companies and less by FIEs and individual-owned companies. The

Conclusions and Recommendations
In the research reported here the short and long-term impact of COVID-19 on sustainability are looked at from the perspective of 1160 business managers by investigating the changes of sustainability priorities during and post the pandemic, and three hypotheses have been tested. The results failed hypothesis 1 as social and environmental dimensions of sustainability are prioritized more by SOEs and private-owned companies and less by FIEs and individual-owned companies. The results also failed hypothesis 2 in that the larger the company, the more they appear to emphasize social and environmental sustainability. It was found that the social dimension of sustainability was prioritized the most by medium-and small-sized companies during COVID-19 and in the longer term after the pandemic, followed by the environmental dimension of sustainability. The largest companies, instead, appeared to show the least interest in social and environmental sustainability, and individually owned companies are in the middle of the range. However, hypothesis 3 is proved to be true as companies with mixed markets did prioritize social sustainability (the first) and environmental sustainability (the second) during the pandemic and in the longer term following the pandemic.
However, it does have to be noted that economic sustainability clearly stood out as having the highest status among three aspects of sustainability post-COVID-19 for all types, sizes, and market focus of business. This leaves environmental sustainability to be the relatively neglected dimension and confirms the possibility of a post pandemic environmental rebound effect that some suggest is already happening in China [55].

Managerial Implications
The above findings and discussion have implications for company managers. To avoid the post-pandemic environmental rebound effect, Chinese companies need to act now. It should be noted that while COVID-19 may not change the global picture with regard to sustainability, the results suggest that sustainability priorities of companies have changed. Additional measures are needed to counteract a possible rebound effect so as to ensure the environmental dimension of sustainable development is not neglected in favor of the social and economic dimensions. In addition, it is important to motivate and empower employees and other stakeholders to pursue sustainability goals and help them integrate these goals into their daily work routines, thus making sustainability everybody's job rather than just the job of those who work in the sustainability department. This is especially important with the accelerating expansion of ICT and digitalization when company employees adapt to the 'new normal' way of working. Recent literature suggests that economic instruments like resources pricing or setting limits to resource use can be effective for this purpose [4]. Special attention should be paid to FIEs and Chinese individual-owned companies, companies larger in size and micro companies, and companies that sell products to only overseas markets or the domestic market.
Will China still be an important actor after COVID-19 in dealing with the issue of climate change? The answer is uncertain. Since government action and economic incentives post-pandemic would influence the global climate change path for decades [3], the opportunity to align long-term economic growth simultaneously with climate change objectives lies with the Chinese government and their decision-making in the coming months. The key is the balance of sustainability and resilience [45,46]. China's quick economic recovery from COVID-19 has presented such an opportunity. To do this, China needs to further confirm its commitment to 'new infrastructure' building. Second, China should not let the pandemic delay the start of the carbon market and move forward with its national emissions trading system (ETS) which aims to limit and reduce CO 2 emissions in a cost-effective manner. In addition, it is crucial for China to stop relying on coal and accelerate the growth of renewable power. Furthermore, although the planned EU-China summit this autumn is postponed, China should see it as a new opportunity for both parties to cooperate on building a greener global economy by aligning their recoveries with the principles of a green transition and bringing other countries along with them.

Theoretical Implications
This paper contributes to the scientific literature of the impact of COVID-19 by adding an empirical investigation of the sustainability priority change as the result of the pandemic in China. It also provides an empirical evidence of the possible rebound effect after the pandemic. Second, views of Chinese business owners and managers were considered in the research; this would help shed light on the business response to COVID-19. In addition, the predicted post-pandemic situation was assessed, which, given the high uncertainty of the possible impact of COVID-19 on the environment, provides an 'ex-post' perspective regarding the post-pandemic recovery worldwide.

Limitations and Future Research
The findings set out in the paper are subject to some limitations. First, only the views of business owners and managers were considered. Although it can be argued that these people are likely to have knowledge and be able to influence company sustainability policies to a greater extent than other employees, future research should garner the views of employee's as no sustainability policy can be implemented without their engagement. Second, this research was conducted in China, where there has not been a second or third wave of the pandemic and where people's lives have returned to being close to those they had before the pandemic. As all the respondents in the survey reside in China, they might not have experienced the consequences of the pandemic as much as people would have done in countries where the pandemic has lasted for much longer. This might influence the respondents' prediction of the post-pandemic sustainability priority, and indeed may be reflected in the relatively small deviations between some of the pre-and post-COVID-19 SD figures. Hence the results of this research might not be readily generalizable to countries that have been hit harder and longer by COVID-19. Nonetheless, it does shed light on the post-pandemic situation for countries/regions with a similar COVID-19 experience. In addition, this research did not involve a detailed investigation regarding the mechanism of the impact (direct and/or indirect) of the changes noted by respondents and future research could look at this for specific areas such as an increased use of ICT due to COVID-19. However, it is important to note that differences in cultural background (as indicated by Muller and Voigt [22]) and the COVID-19 experience should be considered in this kind of study.