Peasants’ Calculation Capacities and Measurement Behaviors in Rural Agricultural Markets of China and Cote d’Ivoire: Implications for Technology Adoption and Rural Development

: Peasants’ calculation capacities (PCC) and measurement behaviors can enable the development of knowledge economy and technological exchanges. This study is based on critical observations made by analysis of Chinese and Ivorian rural markets to understand measurement system as a foundation of development of economic knowledge, science, and technology. A total of 167 rural people from China and Cote d’Ivoire were interviewed using a simple random sampling method through valid and reliable means. Using the univariate statistics, we summarized the data to statistically describe Chinese and Ivorian rural traders. The multiple linear regression model was used to examine the impact of di ﬀ erent explanatory variables on peasants’ calculating capacities. From the independent two samples t -test, we statistically examined the di ﬀ erence between the calculation capacities of Chinese and Ivorian rural traders. Analysis of the data from China and Cote d’Ivoire showed that 76% of Chinese rural traders were using traditional or modern weighing balance compared to only 24% in Cote d’Ivoire. Modern or traditional weighing balance was popular only with traders or wholesalers dealing with bulk commodities, or traders with expensive products in the case of Cote d’Ivoire. Our ﬁndings also depict that the calculation capacities of Chinese rural traders are higher than Ivorian ( p -value < 0.001). Experience was found to be the most e ﬀ ective factors for the estimation of PCC among Chinese and Ivorian rural traders. Together, these results signiﬁcantly expand the knowledge, economy, and technology adoption issues in the context of China and Cote d’Ivoire. Thus, our analyses provide useful insights for policymakers, rural traders, advisers, for decision making and agricultural extension services in these two countries, particularly for China–Africa cooperation.


Introduction
An observed, regularity of certain magnitudes by people in their ordinary life is a basic motive for calculation inquiry, which invites measurement system and shapes human behavior. The computation capacities have been casting a light on the measurement advancement of economics and other and Cote d'Ivoire) are, therefore, existing because of the inconsistency of the computing power of people. However, the association between mathematics (computation) capacities and measurement system of economic trade remains an unchartered interest of research. In fact, investigating whether the mathematical computation and measurement have a connection and simultaneous effect on measurement technology adoption is discipline quo discipline, or second-order questions [13]. Herein, the second-order question is not discipline-specific subject matter rather beyond a discipline issue.
It is against this backdrop that this study was conducted to examine the differences in the measurement behaviors of market participants in the context of the rural marketplace of China and Cote d'Ivoire. The calculation capacity of market traders in both countries' rural marketplaces was also explored. Moreover, the correlation between the calculation capacities and measurement behavior was analyzed. The influence of measurement behavior and PCC upon institution, knowledge and cultural capital, technological cooperation, and economic development were examined. Overall, the study has practical and theoretical contributions. The study highlights the need for stakeholders to re-consider measurement issues in macro-policies, thereby trading parties could acquire potential benefits from agricultural trade. Furthermore, the study expands the knowledge economy and technology adoption issues in the context of China and Africa. So far, the mathematics spillover effect on the economic trade measurement system and behavior is limited. To this aspect, the study contributes to the existing theories of both disciplines of economics and mathematics. This paper is organized into introduction where a general view on the topic is extensively provided. The methods and sampling techniques used in data collection are described in the methodology section. The results and discussion present major findings of the study and are thoroughly discussed with respect to their theoretical and policy implications, while the conclusion summarizes the practical implications of these findings and recommendations for the future.

The Study Areas
A comparative analysis of the measurement behaviors and computing power of rural people was made by selecting two rural towns from China and Cote d'Ivoire purposively. Four rural markets were selected in both China and Cote D'Ivoire. Chenxiang and Luodian rural markets were the two study zones chosen to conduct this study in China. Chenxiang town is under the jurisdiction of Guangshui city (northern part of Hubei province, Figure 1), which is located 18 km south from Guangshui. Chenxiang has a total population of 52,751 and covers an area of 142 square kilometers. Luodian township is also under the jurisdiction of Guangshui city, located in the south-central part of Guangshui city, with an area of 109 square kilometers and a population of 46,799. In Cote d'Ivoire, the sub-prefecture of Gadouan was selected ( Figure 1). Gadouan is a town in west-central Cote d'Ivoire, a sub-prefecture of Daloa department in Haut-Sassandra region, Sassandra-Marahoué district. The town is located between the geographic coordinates of 6 • 39 N 6 • 10 W with a population of 57,470 [14]. Additionally, Zaliohouan is a village in western Cote d'Ivoire and located in the sub-prefecture of Gadouan with latitude and longitude of 6 • 47 N 6 • 14 W.

Data Collection and Sampling Methods
A simple random sampling method was used to collect data from 167 rural people from the target population in China and Cote d'Ivoire ( Figure 2). Primary data was obtained by using a semistructured questionnaire as a data collection tool. The socio-demographic/economic characteristics of the respondents are summarized as descriptive statistics. There was a total of 84 questionnaires (49 in Chenxiang town and 35 in Luodian township) rural markets in China ( Figure 2). In the case of Cote d'Ivoire, there was a total of 83 questionnaires with 54 in Gadouan town and 29 in Zaliohouan ( Figure  2). The difference in the size of the sample in the two study zones in each country is due to the differences in the township in both countries.

Data Collection and Sampling Methods
A simple random sampling method was used to collect data from 167 rural people from the target population in China and Cote d'Ivoire ( Figure 2). Primary data was obtained by using a semi-structured questionnaire as a data collection tool. The socio-demographic/economic characteristics of the respondents are summarized as descriptive statistics. There was a total of 84 questionnaires (49 in Chenxiang town and 35 in Luodian township) rural markets in China ( Figure 2). In the case of Cote d'Ivoire, there was a total of 83 questionnaires with 54 in Gadouan town and 29 in Zaliohouan ( Figure 2). The difference in the size of the sample in the two study zones in each country is due to the differences in the township in both countries.

Data Collection and Sampling Methods
A simple random sampling method was used to collect data from 167 rural people from the target population in China and Cote d'Ivoire ( Figure 2). Primary data was obtained by using a semistructured questionnaire as a data collection tool. The socio-demographic/economic characteristics of the respondents are summarized as descriptive statistics. There was a total of 84 questionnaires (49 in Chenxiang town and 35 in Luodian township) rural markets in China ( Figure 2). In the case of Cote d'Ivoire, there was a total of 83 questionnaires with 54 in Gadouan town and 29 in Zaliohouan ( Figure  2). The difference in the size of the sample in the two study zones in each country is due to the differences in the township in both countries. A primary survey conducted on food quality and its pricing was organized with traders in traditional markets. A pilot survey was organized in China and Cote d'Ivoire rural areas to validate the data collection instrument (semi-structured questionnaires). The pilot research allowed us to have an idea on the content of the questionnaire and the variables needed and more importantly, to identify the zones where this study could be conducted. In reality, asking a question about the calculation capacity of rural people is somewhat challenging because they tend to be reluctant about this kind of questionnaires. From a practical perspective, we opted for a small number of questions. The survey questionnaires included information on basic socio-economic characteristics of traders and some business information, such as occupation, experience in business, transaction type, market type, use of calculator, type of weighing and trading frequency, together with a detailed description based on a list of quality indicators. In rural markets, people usually sell agricultural products (grains, vegetables, fruits) and some daily consumption products (convenience shops). Traders that specialize in specific products and often sell only those products and traders selling similar products are usually clustered in the same area within the market. In these four chosen zones, it is usually an open market. Comparatively, 60% and 77.10% of rural traders practice the open market system in China and Cote d'Ivoire, respectively. The respondents included farmers, agricultural retailers, and wholesalers, mainly engaged in the trading of vegetable and melon, agricultural and side-line products, and a few were engaged in industrial retailing. In the Chenxiang and Luodian market, 100% of traders use traditional or current electronic balances to perform weighing transactions, which are priced in Chinese Yuan (RMB). The market value of products traded between 350 and 207,266 yuan ($50 to $30,000). In Cote D'Ivoire markets, the main products are essentially agricultural products including beef, vegetables, grains, and tubers and the traders consist of retailers, shopkeepers, and wholesalers of agricultural products. The total value of goods traded is between, 2000 West African CFA Franc (XOF) and 2,000,000 West African CFA franc (XOF) ($3.5 to $17,300).

The Peasants 'Calculation Capacities (PCC) Measurement and Data Analyses
The measurement of computing power was mainly based on measuring the mental arithmetic ability without using any calculation tool. The questionnaires have been arranged from the less difficult to the most difficult one in such a way to save time. The difficulty level of the questions was determined during the pilot research study and reorganized in the final version of the questionnaire. The calculations were divided into three categories: One-digit multiplication, fractional multiplication, two-digit multiplication (Table 1). Based on these three categories, the proportion of true responses provided by each peasant was determined. This proportion of true answers provided by each peasant was our PCC. Table 1. Different categories of calculations used to assess the respondents' computing power.

Category Different Calculations Types
One-digit multiplication 6 × 9 7 × 7 8 × 9 Fractional calculation 1. Does this mental arithmetic ability represent the computing power of the respondents? Indeed, we did not find a direct study that explains the association between mental arithmetic and the computing power of peasants. However, a few studies assumed that the individuals who are familiar with the operation of the numbers and who frequently perform calculations are inevitably strong in mental arithmetics [1,[10][11][12]. This assumption is reasonable. We performed econometric analyses to identify factors that influence peasants' computational capacity. The econometric analysis used the multiple regression model to predict the various correlates that have been studied. The multiple linear regression model was built based on the assumptions of least square method regarding linearity, normality, and homoscedasticity.
where: Y i = calculation capacity of the peasant i (dependent variable), and X i are the independents variables and ε i = Error term. Based on the literature [15,16], we summarized the explanatory variables (X i ) of our model ( Table 2).

Descriptive Statistics
The socio-demographic data obtained from the respondents present some striking differences observed between rural traders in China and rural traders in Cote d'Ivoire (Table 3). Only 8.43% of rural traders in Cote d'Ivoire are males compared to 54.76% of males in China. This may be due to the fact that in Africa, and more specifically in Cote d'Ivoire, the activities related to trade in rural areas are mostly done by women. This result is in line with Vandeplas and Minten [17] who reported in their comparative study between Madagascar and India that, only one-third of tomato traders were male in Madagascar compared to India where the number was higher. Attané [18] in her study on gender demography in China argued that there is no significant difference between males and females in this kind of activity.
Educational levels in China are relatively high compared to Cote d'Ivoire. Actually, only four interviewees among 84 respondents in China (4.76%) had no basic education when compared to 40 interviewees among 83 respondents in Cote d'Ivoire (i.e., 48.19%). This result compares well with Baskaran [19] in a UNESCO science report that revealed that, by 2030, low quality of education system in most West African countries may also have an impact on science and technology (S&T) development. We also found that, 24% of rural traders in Cote d'Ivoire are not Ivorian citizens. In contrast, all the rural people interviewed in China were Chinese citizens because there are few foreigners in rural China. The recent General Census of Population and Housing (GCPH) in Cote d'Ivoire (2014) depicted that, there are 22,671,331 inhabitants in Cote d'Ivoire and 24.2% are not Ivorian [14]. In Cote d'Ivoire, we found that most of the rural traders (54%) use the foot as a means of transport to reach the local market from a minimum distance of 100 m to a maximum of 7 km. While, in China only three (3.5%) among all the surveyed traders come to the market on foot from a maximum distance of 1 km. These socio-demographic variances may explain each socioeconomic condition in rural areas.
According to the standard international age classifications set up by United Nations [20], populations can be divided into six broad population groups: Infancy, youth, young adulthood, middle adulthood, and old adulthood to average retirement age (under 1, 1-14, 15-24, 25-44, 45-64, and 65+ respectively). However middle adults are the most dominant among rural traders in Cote d'Ivoire' rural markets. In addition, 55% of surveyed rural traders belong to the aforementioned group, followed by young adulthood group (25%), old adulthood (18%) and retired group (2%). In China, we find that 54% of rural traders belong to the old adulthood group, followed by middle adulthood group (27%) and retired group (19%) which was higher when compared to Cote d'Ivoire. In China, we did not find any rural trader belonging to young adulthood age group. These findings are in line with those of Li et al. [21] who mentioned that a large share of China's rural labor force work in agriculture and most of these workers are older men and women. In China, we discovered that 51% of rural traders were originally smallholder farmers coming to sell their products on the local market, while in Cote d'Ivoire only 10% of surveyed traders were smallholder farmers. We also found that the majority of traders in both countries (89% in China and 95% in Cote d'Ivoire) are retailers and most of them (61% in China and 77% in Cote d'Ivoire) are practicing open market type. These findings have been confirmed by Vandeplas and Minten [17] in their comparative study between Madagascar and India. One of the most striking results we found from this study is that 76% of Chinese rural traders were using traditional or modern balance compared to only 24% in Cote d'Ivoire, whereas a non-rational system (the use of heaps, cups, glasses, etc., to measure agricultural products) were heavily practiced among rural market traders in Cote d'Ivoire. Interestingly, 79.6% and 88% of different products sold in China and Cote d'Ivoire rural markets, respectively, can be described as "weighable". Food and Agriculture Organization (FAO) 2015 Report on The State of Agricultural Commodity Markets mentioned the situation in Cote d'Ivoire where the major means of weighing agricultural commodities in the rural area are not conventional and accurate [22], which corroborates observations from this study.

Comparison of the Calculation Accuracy of Traders with Different Years of Education
From Table 4, we can see that at each level of education, the correct calculation rate of rural traders in China is significantly higher than that of Cote d'Ivoire except the group with more than twelve years of education. However, there is no trend showing the constant increase in education level and calculation competence. This may be attributed to the fact that calculation problems do not necessarily require a higher level of education. In addition, we chose to study rural markets, as the age of the respondents, rural fair trade, low level of education, and their computing power are also essentially related to their experience of their daily lives, thus eliminating the impact of education on computing power. The above results come to justify those of Eisenman [23]. In his study, he mentioned that during the Chinese revolution, the improved productivity was accomplished primarily through investments in human and physical capital, such as vocational education and farm machinery. Therefore, the Chinese promoted experience-based education system to enhance agricultural technology uptake.

Comparison of the Percentage of Different Levels of Calculation Capacity between China and Cote d'Ivoire
Among the two countries, the proportion of low-level calculation rate in Cote d'Ivoire is 42%, which is much higher than that of China (19%). Therefore, correspondingly, the proportion of middle and high-level calculation rate of rural traders in Cote d'Ivoire is lower than that of China (Table 5). It should be noted that the higher the correct rate of calculation, the higher the mental arithmetic ability to perform complex operations. In this vein, Chinese PCC is much higher than that of Cote d'Ivoire. The independent two samples t-test results also confirmed that Chinese PCC is higher than Ivorian (p-value < 0.001). The explanation behind this difference may be probably due to high level of practice-based education in China. Practice-based education is associated with experience accumulation in the learning process. This learning by doing was explained by Eisenman [23] in his book called: "Red China's green revolution: technological innovation, institutional change, and economic development under the commune". The low-level indicates that the correct rate of answer is below 33%, the medium level indicates that the correct rate of answer is between 34% and 66%, and the high-level indicates that the correct rate of answer is above 66%, (%), which signifies the percentage of this calculation level in the total sample. (Source: Field Survey, 2018).

Comparison of Calculation Capacity between Different Age Groups in the Two Countries
In general, Table 6 shows that, in all age groups, the calculation accuracy of Chinese rural traders is significantly higher than that of Cote d'Ivoire rural traders except old adulthood age group (probably due to the number of surveyed rural traders in that group). The average calculation in China in middle adulthood and old adulthood groups is respectively 60 and 61 compared to 41 and 82 in Cote d'Ivoire. The young adulthood group is not available in the case of China, because there is no surveyed rural trader belonging to the group mentioned above. Simultaneously, we observed that the higher the age, the higher the rate of calculation, in both countries (Table 6). However, this might not be attributed to age, but to the length of experience in business practice. This is in consonance with De la O Campos et al. [24] which reported that age is positively associated with productivity, although experience and know-how are increasing with age, and should, therefore, be positively associated with productivity. Nonetheless, from these results, we can also see that the rural traders' calculation capacities decrease in the retired group in both countries. The explanation behind this fact is that when people reach this age group their mental capability decreases, so they may be less efficient in such kind of mathematics problem. This result is in the same line with those of Gardner et al. [25] who mentioned that there was a steady decline in science achievement scores in among Americans based on age increase.

The Impact of Trading Frequency on Rural Traders' Calculation Capacities
For rural markets in both countries, the business frequency and average calculation capacity of rural traders are positively correlated. The average calculation rates of non-regular and regular traders in China are 50 and 61, respectively, compared to 50 and 58 in Cote d'Ivoire (Table 7). But we must be careful as the two variables seem to be associated but not causally related. The multiple regression results show that the trading frequency is not statistically correlated with the calculation capacities of rural traders in China as well as in Cote d'Ivoire and it may be a spurious relationship.

The Influence of Trading Behaviours on the Calculation Capacity of Rural Traders
The trading behavior influence on PCC in both countries is not so clear. In effect, the results show that, in China, the PCC increases with the use of weighing scale (balance), but it is not that important. While in Cote d'Ivoire the results are a bit confusing. The use of weighing scale does not clearly show the increase of PCC (Table 8). Moreover, Tables 9 and 10 show the type of weighing is not statistically significant in both countries. Generally, there is a trend showing the positive impact of trading behaviors on calculation capacity, but the results are not statistically significant. Ultimately, our findings are to some extent in line with Weintraub [1] who reported, a positive relationship between measurement and mathematical knowledge. In China, experience in trade, the sale per day, and use of calculator are the variables explaining estimated PCC. These findings show that the use of a calculator is negatively correlated with PCC at 1%, while the sale per day and the experience in trade are both positively correlated with PCC at 10% (Table 9). These results are reasonable, the more the use of a calculator, the lower is the ability to do a mental calculation. When a peasant becomes more familiar with a calculator, they may sometimes struggle to perform small equations, such as additions and multiplications, mentally. Calculators reduce their mental calculation skills when used routinely for basic calculations. Masimura [26] reported that the secondary school learners who are dependent on calculators failed to solve basic mathematical calculations, confirming the results of this study. The variable "Sale per day" is equally identified as a significant determinant of PCC in China. Indeed, if the value of total products sold per day in Yuan increases, the peasant calculation capacity also increases. The increase in the sales amount per day assumes that the peasant has more sales. This situation reinforces the peasant's mental computation as Gürbüz and Erdem [10] reported a significant positive correlation between mental computation and mathematical reasoning among peasant traders.
Experience in trade and sale per day are both based on individual practice. Therefore, the more they practice, the faster they develop knowledge based on personal experience. That is why these results comply with those of [23] who reported that "learning by doing" promoted the experience-skilled knowledge system in China under the communist party. However, the link between measurement and mathematics has been reported by Weintraub [1]. Therefore, the use of measurement tools can promote the accumulation of mathematical knowledge. That is why these results also comply with those of Fatima [11] who stated that experimental methods and mathematics form the conceptual scheme on which modern science is based and which supports technology development and uptake. In Cote d'Ivoire, experience in trade, occupation and number of products that the seller is holding are the variables explaining the PCC. The results depict that, the number of products that the seller is holding, and occupation are negatively correlated with PCC at 1% and 5% respectively. This suggests that when someone is not trading as the main activity, their computational power is lower. Our result is consistent with the study carried out by Mutawah in 2016 [12]. Further, the more products a person has got to sell the lower his or her computational power will be. Moreover, the experience in trade is positively correlated to PCC at 1% (Table 10), which justifies our arguments, as stated in the case of China. It appears that "experience in trade" influences the peasants' calculation capacities in both countries as PCC increases when the peasants' number of years in trade increases. In fact, the experience depicts skills that people have acquired knowledge by "learning by doing". The more people spend time to do something the more they develop practical skills to perform them better, as established by Mutawah [12] who reported that more practice had a significant impact on the mental strategies and executions.

Theoretical Implications
Measurement is the backbone of science and technology as science and technology are the basics of every economic development. Meanwhile, measurement and science are to some extent related, and, therefore, having a weak measurement system in a country can highly impact the knowledge dissemination. Various comparative studies of mathematics abilities among inter-racial and intercultural subjects have been copiously reported in the United States and elsewhere [27]. However, the direct comparison between measurement behavior and computational power in rural markets in China and Africa has not been seen in the existing literature. Our findings may have important theoretical implications in the following aspects:

Institutional Level Aspect
Most African rural traders seldom use weighing scales to measure agricultural products not necessarily because they cannot afford them, but because of the apparent lack of a socio-cultural orientation towards this as a habit and willingness to adapt. Habits are just like instincts. Changing a habit needs a lot of sacrifices and time. During the survey in Cote d'Ivoire, the authors asked one respondent who was selling chicken in Gadouan rural market. Why don't you use a weighing balance to measure the chicken's weights since the weights of chickens are not uniform? The participant replied that: The balances are not beneficial to us. When we are selling by unit, it is much profitable. Can you see this chicken is completely white without any other colors? Thus, some consumers come to market looking for this special attribute to use it as a sacrifice or in other ritual ceremonies. In this kind of situation, we can significantly increase the price and gain more on the chickens. So, in this case, it is really difficult for us to use balance and we work based on market demand. When there are some ritual ceremonies, people will pay any price without arguing on it. You know we are in Africa, and we are still attached to our traditional believes and habits.
This justification was not so convincing since there is a possibility to set some specific prices for such an attribute. However, such traders think such situations were profitable for them as they arrogate the power to dictate products pricing to their benefit. Many unique product attributes, such as color, are just periodic, and represent only one-third of market demands. Therefore, setting a standardized price and using weighing balance can significantly reduce the transaction costs for the sellers and the consumers. The trading behavior of this chicken seller in Gadouan rural market is also a common practice even in some markets of Abidjan (economic capital of Cote d'Ivoire). Indicating that urbanization failed to eliminate this kind of practice in Cote d'Ivoire. Regulatory institutions are the surest bet to legislate and ensure strict compliance with such rules for a leap forward. Many attempts of weighing balance implementation in Cote d'Ivoire have failed probably due to the reasons above and more importantly, the attachment to the long-standing practices.

Cultural Capital and Knowledge Paradigm
The attachment to local traditions which conflicts with the development of science and technology partly explains the lack of modernization of most African countries. African and Chinese societies are not logic-based societies as they learned how to cope with contradictions compared to Western societies where everything seems logic-based. The Chinese society has a narrower gap between traditional and modern societies compared to African societies, partly attributable to socio-cultural diversity. The Shanxi, the Hui, and the Ningbo merchants in the old Shanghai were trained from the apprenticeship system. This shows Chinese culture and modern enterprise management became compatible with each other. Chinese culture attaches importance to the present world, the anxiety of survival, the importance attached to children, and the emphasis on practice-based education promotes capital accumulation and knowledge dissemination.
The paradigm of knowledge is also a common problem in China, as China relies on its agricultural economy, the path dependence of its related way of thinking and overemphasis on technology at the expense of science. Logical thinking, precision, and scientific theory have been underdeveloped in China [8,28]. Despite local empirical knowledge, it is not sufficient to produce modern science, but it helps them understand and imitate modern science and technology. The huge differences in history and cultural foundation will inevitably lead to differences in real development. The existing measurement disparities in Africa (Cote d'Ivoire) between long-standing practices and development of science exacerbate the stagnation of science and technology. African countries need to embrace modern science and integrate it with their traditions to make a move towards sustainable development. To this context, measurement and calculation, which are one of the basics of science and technology, will ease local transactions and rural commerce. Therefore, they are interesting variables towards the development of science and technology.
The measurements and calculations need skills and innovation, not just a copy and paste. Chinese have over the years been labelled as imitators. Chinese take their time to remove errors based on their own situation and reality before applying any model. Imitation is the advanced copying, in other words, to imitate is to copy intelligently. It is like the scanned version versus the original version of a document. African countries will benefit more by learning how to imitate instead of blindly copying a particular model. Chinese society learned how to imitate but not copy. Measurements of quality and calculation capacities of a population show the quality of a country in terms of human capital. Measurement is the basis of science and technology. That is why Africa needs to pay much attention to this problem. Improving the measurement system in Africa in general and particularly in Cote d'Ivoire will easily help the country to adapt to science and technology development. The attachment to long-standing traditional practices creates what we call path dependence which conflicts with the development of science and technology. Although East Asian society or more specifically Chinese society is traditionally an experience-skilled knowledge system, its high level of skill system contains high measurement and computational power, coupled with a strong impulse to the economic benefits behind technological advancement, technical foundation, and technology. Ultimately, Chinese society can quickly absorb the Western science and technology system by showing strong imitation [29]. This interpretation is consistent with the perspective of cultural capital research of Bai Tao [30].

China-Africa Technological Cooperation and Economic Development Level
China-Africa cooperation can start with practical technology, strengthen the interaction and cooperation between Chinese smallholder farmers and African smallholder farmers, and gradually improve measurement and calculation habits of African people. China is slightly ahead of Africa in measurements and calculations. This proximity effect can provide unique advantages for China-Africa cooperation. Many trading and production tools or methods and techniques traditionally used in China require high measurement accuracy and computational power. The introduction of these practical tools, techniques, and methods into Africa can gradually improve the ability of African peasants to calculate and predict. In terms of China-Africa cooperation, China first needs to train African human resources. This is not simply to train international students, technicians and government officials in Chinese or Western universities, but to face the vast majority of African workers (farmers). Key socio-demographic variables like gender and education were not statistically significant, and should be factored in selecting the trainees in agricultural technology transfer programs between China and Cote d'Ivoire or other African countries.
The concept of a developing country is unclear, a non-strict economic term. In the existing developing countries, there are significant differences with some having a long history of civilization, some with a relatively short history, and their economies revolving around collecting, fishing, and hunting. Each of these countries has its own distinctiveness. Some have a strong religious orientation and some are more secular. Some have experienced a long-term planned economy, and some have always been a free economy. These geo-cultural variables have an important impact on economic development. The economy is not only subject to the variables of the economic system but also subject to variables outside the economic system, especially historical, technical, and cultural variables. The same labor force, the same capital stock, have different meanings in different cultural contexts. The difference in measurement behaviors observed in Cote d'Ivoire and China, to some extent, explains the difference in their respective developmental stages. It is better to classify countries with different historical backgrounds, especially those with different economic and technological historical backgrounds, social and cultural variables that have a greater impact on the economy. For instance, studying developing countries with intensive farming, studying developing countries with primitive agriculture, and studying developing countries with strong religious backgrounds. In this way, a good economy strategy can be designed. The East Asian economic miracle is a major event in the second half of the 20th century and the 21st century of the world economy. Although many explanations are given in theory, there is not much attention paid to the quality of individual workers in the East Asian society. From the perspective of China's development history, the Chinese labor force is certainly one of the key elements as exemplified by the tight relationship between measurement and computing power of its population and quality of labor. African countries should understand that the basic resource of any country is its population and the driving force is its working class.

Conclusions
This study analyzed peasants' measurement behaviors and computing powers in China (Chenxiang and Luodian rural marketplaces) and Cote d'Ivoire (Gadouan and Zaliohouan rural marketplaces). The study showed that the trading behaviors and calculation capacities were diverse between China and Cote d'Ivoire rural markets. The comparative results depicted that the traditional and modern balances were popular in China, whereas selling by heaps, cup/glass, pieces systems were practiced in Cote d'Ivoire among retailers and modern balance was popular only with large traders or wholesalers dealing bulk commodities, or traders with expensive products. In fact, the two sets of trading systems may be efficient in their respective societies, or as a result of rational choice.
Conversely, the calculation capacity of Chinese rural traders was found to be higher than that of Cote d'Ivoire rural traders. The PCC increases with trading behaviors, but to a certain extent in the two countries. Experience was found to be the most effective factor that influences the calculation capacity of Chinese and Ivorian rural traders. Rural marketplace measurement behaviors reflect the quality of the whole population's attitude to dealing with numbers (digitalized world). Although the two options are rational under their respective socio-economic conditions, this does not mean that the difference between the two is not important. Moreover, the difference in computing power does not reflect racial differences but is the result of different social practices. Measurement behaviors on the rural market reflect the ability of people to deal with numbers, and this daily practice has a profound influence on increasing the quality of digital citizens. China's high ability and habits in measurement and calculation make it relatively easy for Chinese society and even East Asian societies to receive modern Western technology.
Besides, the study sows a seed to explain the economic benefit of a reliable measurement system at a transactional level, by relating mathematics and economics disciplines together. The implication of PCC and measurement practices to institution, knowledge and cultural capital, and China-Africa technological cooperation were revealed in a way to contribute to the economic growth. Herein, the approach employed to measure the rural traders' computing power needs further improvement, which will require developing a more accurate method to measure the PCC. However, future studies should investigate if there is a direct relationship between measurement accuracy and acceptance of modern science and technology.