1. Introduction
The rapid development of big data, cloud computing, artificial intelligence, and other digital technologies is reshaping how firms allocate resources, create value, and define competitive boundaries. Digital technologies have enabled new business models and organizational forms while compelling firms to reassess established operating models and sources of competitive advantage [
1]. Digital transformation has therefore become more than a defensive response to technological change; it is a strategic process through which firms redesign business processes, innovate value creation, and support long-term development [
2,
3]. Rather than representing the mere deployment of information technology, digital transformation entails the systematic reconfiguration of strategy, resources, organizational processes, and business models around digital technologies [
4].
Human resource service (HRS) firms provide a distinctive setting in which to examine this process. Their activities center on information search, talent assessment, labor-market matching, and relationship coordination. They are knowledge-intensive, information-intensive, interaction-intensive, and highly dependent on professional judgment. Data analytics, intelligent assessment, algorithmic recommendation, and digital platforms can reduce search and matching costs and improve recruitment, assessment, training, flexible staffing, and career services. At the same time, HRSs cannot be reduced to standardized information processing. Their value continues to depend on sector-specific expertise, professional judgment, client trust, relational networks, and institutional legitimacy. Digital transformation in this sector therefore reflects an interaction between the efficiency logic of digital technologies and the professional, relational, and regulatory logics of HRS provision.
Beyond improving firm efficiency and competitiveness, digital transformation in HRS firms also has broader implications for sustainable development. By enhancing information processing, talent matching, and digital service delivery, HRS firms can reduce labor-market information frictions, expand access to employment services, and improve the efficiency and inclusiveness of human resource allocation. These changes can support service innovation and broaden access to labor-market opportunities, thereby contributing to more sustainable human resource service provision. From this perspective, digital transformation represents not only organizational upgrading but also a potential pathway toward sustainable value creation in the HRS sector.
This interaction creates a transformation paradox. On the one hand, HRS activities have substantial potential for digitalization and platformization, allowing firms to overcome the scale constraints of labor-intensive service delivery. On the other hand, the conversion of digital technologies into process redesign and value creation depends on a clear digital strategy, mobilizable relational resources, a supportive policy context, and the capacity to respond to competition. Firms operating under similar technological and institutional conditions may consequently display markedly different transformation outcomes. Established providers may possess extensive client networks, accumulated industry knowledge, and institutional resources but remain constrained by organizational inertia and rigid processes. Technology-oriented entrants may possess advanced digital capabilities but lack client trust, industry legitimacy, or relational resources. These differences suggest that digital transformation is not a linear sequence from technology investment to performance; it is a complex process of alignment among technological, strategic, relational, and environmental conditions.
China’s rapidly developing digital economy offers a useful institutional and industrial context for studying these configurations. The digital economy, industrial digitalization, and the upgrading of modern services have received sustained policy support. As an intermediary sector linking human capital with the real economy, the HRS industry is increasingly expected to improve labor-market allocation and modernize service systems through digital transformation. Beijing combines a dense concentration of science and technology resources, HRS providers, policy resources, and market competition. Its HRS ecosystem includes integrated service providers, executive-search firms, flexible staffing platforms, online recruitment companies, assessment firms, and digitally enabled training providers. The coexistence of diverse ownership structures, firm sizes, and business models provides a suitable setting for examining how different resource endowments generate alternative pathways to digital transformation.
Existing research has identified technological infrastructure, organizational resources, strategic capabilities, government support, and competitive pressure as important antecedents of digital transformation. However, the complex mechanisms through which these factors combine in HRS firms remain underexplored. First, much of the literature follows a variable-centered linear logic that estimates the independent net effect of each factor. Such models are useful for assessing average associations, but they tend to treat other conditions as separable background variables and are less able to capture complementarity, substitution, or suppression among technological, organizational, and environmental conditions [
5,
6]. Firms do not possess identical resources, and high digital transformation may be achieved through different combinations rather than a single best practice.
Second, the digital transformation literature has concentrated heavily on manufacturing and broad service-sector samples. In manufacturing, transformation frequently concerns equipment, production, supply chains, and operational systems. HRS firms instead depend on talent data, specialized knowledge, client relationships, reputation, and institutional credentials. Whether technology produces substantive transformation therefore depends not only on technical tools but also on digital strategy, social capital, policy support, and competitive conditions. Applying generic transformation models without adaptation may overlook the relational and institutional foundations of this industry.
Third, theory-driven variable selection may fail to capture locally salient conditions in a policy-intensive and network-embedded industry. An empirical strategy that first derives antecedent conditions from firms’ transformation practices and then integrates them within an established framework can reduce this risk. Moreover, prior studies have paid more attention to the presence of high transformation than to its absence. The conditions that generate a high outcome cannot be assumed to have mirror-image effects when absent.
Accordingly, this study addresses three questions: (1) Which antecedent conditions are central to the digital transformation of HRS firms? (2) How do technological, organizational, and environmental conditions combine into configurations associated with high and non-high digital transformation? (3) Do the configurations associated with high and non-high digital transformation exhibit causal asymmetry?
We adopt an exploratory mixed-method design [
7]. In the qualitative phase, interview data from 20 Beijing-based HRS firms were analyzed using grounded theory procedures to identify contextually grounded antecedent conditions. The five conditions were subsequently organized within the TOE framework: digital technology application represents the technological context; digital strategic planning represents the organizational context; and firm social capital, the digital policy environment, and competitive intensity capture the relational, institutional, and market aspects of the environmental context, respectively. In the quantitative phase, fuzzy-set qualitative comparative analysis (fsQCA) was applied to survey data from 97 HRS firms to identify sufficient configurations for high and non-high digital transformation.
This study makes three contributions. First, it extends digital transformation research by revealing the context-specific role of relational resources in the HRS industry. Whereas much prior research, particularly in manufacturing settings, emphasizes technological readiness, production systems, and operational integration, HRS firms depend more heavily on client relationships, institutional connections, professional reputation, and access to external resources. Our findings show that firm social capital is therefore an important component of the HRS transformation context, but not a universally sufficient or uniformly beneficial condition. Its contribution depends on how it is combined with digital technology application, strategic planning, policy support, and competitive pressure. Second, the findings identify three broader configurational patterns—technology–strategy synergy, technology–competition alignment, and strategy–ecosystem coordination—showing that HRS firms can reach high digital transformation through different forms of complementarity rather than through a single dominant model. Third, the sequential use of grounded theory and fsQCA enables the study to connect contextually grounded condition identification with configurational explanation. Its value therefore lies not simply in combining two methods, but in showing how conditions derived from HRS firms’ actual transformation practices operate jointly across firms.
5. Discussion
To further interpret the mechanisms underlying the identified configurations, we draw on illustrative evidence from the qualitative phase. These interview cases were independent from the 97 firms included in the fsQCA analysis and are used to provide contextual insights into how the identified conditions may operate in practice. Accordingly, the cases presented below should be understood as qualitative illustrations that complement the configurational findings rather than as empirical cases representing specific fsQCA pathways.
5.1. Configurational Pathways to High Digital Transformation
The five high-outcome solution terms are interpreted through three broader substantive patterns: technology–strategy synergy, technology–competition-driven transformation, and strategy–ecosystem synergy. S1 and S2 constitute the first pattern, S3 and S4 jointly constitute the second, and S5 constitutes the third. Because S4 contributes virtually no unique empirical coverage, it is not interpreted as a separate substantive pathway.
5.1.1. Technology–Strategy Synergy
S1 and S2 share the core presence of digital technology application and digital strategic planning. Their common structure indicates that technology is most consequential when it is directed by a strategic logic that specifies investment priorities, implementation sequencing, and integration with service scenarios [
53]. In HRS firms, digital transformation is not achieved by adding information systems in isolation. It requires the embedding of technology in recruitment, talent assessment, training, payroll and tax services, and flexible staffing, thereby reconfiguring service delivery and value creation.
S1 adds firm social capital as a peripheral condition. It represents an internally accumulated transformation process supplemented by relational resources. Professional knowledge, client relationships, and business data provide application scenarios, while social capital supplies client insight, collaborative opportunities, and industry knowledge. The interview case of C05 provides a qualitative illustration of this mechanism: its accumulated assessment expertise and talent data were integrated with AI-enabled assessment, talent databases, and online consulting platforms, converting professional capability into digital products and platform services.
S2 adds competitive intensity as a core condition. Strong competition increases the urgency of transformation, while a clear digital strategy converts that pressure into sustained R&D, scenario innovation, and service-model adjustment. Firm C08, operating in online recruitment, incorporated digitalization into long-term strategy and continuously applied AI, large language models, intelligent recommendation, and talent profiling to job matching and platform services. The case illustrates how strategy can translate competitive pressure into sustained technology development rather than fragmented short-term responses.
5.1.2. Technology–Competition-Driven Transformation
S3 and S4 share the core presence of digital technology application and competitive intensity and are therefore interpreted jointly as a technology–competition-driven pattern. In information-intensive services, competitive pressure arising from service homogenization, declining margins, platform entrants, and changing client requirements increases the demand for faster, more efficient, and differentiated service delivery. Digital technology provides the operational basis for responding to these pressures through workflow automation, data-enabled decision making, and service innovation [
54].
The two solution terms differ in their peripheral relational and policy conditions. S3 combines the peripheral absence of firm social capital and a favorable digital policy environment, whereas S4 combines their peripheral presence. However, because S4 has a unique coverage below 0.001, this peripheral distinction is not interpreted as constituting a separate substantive pathway. The theoretical interpretation therefore focuses on the shared technology–competition core of S3 and S4.
Firm C10 provides a qualitative illustration of this broader mechanism. The firm responded to intensifying competition in outsourcing services by developing business management systems, a software-as-a-service platform, and automation tools that redesigned client management, employee services, and transaction processing. This example illustrates how technological capability can be mobilized in response to competitive pressure even when relational and policy support is limited.
5.1.3. Strategy–Ecosystem Synergy
S5 combines core digital strategic planning and competitive intensity with peripheral firm social capital and the digital policy environment. Digital technology application is unrestricted. This configuration highlights the role of strategy in integrating market demand with external ecosystem resources. Under sustained competition, strategy clarifies priority service domains and coordinates policy resources, client networks, and partners within a broader process of business reconfiguration. Social capital supports interorganizational cooperation and resource exchange, while the policy environment supplies institutional support, projects, and public resources. Their integration can support movement from isolated digital projects toward platform-based and ecosystem-oriented services [
55,
56].
The unrestricted status of digital technology does not imply that technology is absent or unimportant. It means that membership in the set of high digital technology application is not a defining requirement for this pathway. For diversified HRS firms with extensive client networks and strong resource-integration capabilities, transformation may be expressed primarily through the redesign of business portfolios, organizational boundaries, and service ecosystems, with technologies deployed as instruments of strategic integration.
Firm C01 reflects this mechanism. The firm integrated recruitment, talent management, payroll and tax services, and employee services into a digital platform covering the HRS lifecycle. The key mechanism was not any isolated technology but the strategic coordination of business units, market requirements, government relationships, clients, and partners. This interpretation is consistent with research showing that platform innovation depends on the orchestration of heterogeneous resources rather than on technology possession alone [
25].
5.2. Configurational Pathways to Non-High Digital Transformation
Both non-high configurations share the absence of digital technology application and digital strategic planning, but differ in the constraints they represent. N1 reflects weak internal digital foundations combined with limited external resource access, whereas N2 reflects transformation inertia in which relational resources sustain existing operations without supporting digital renewal.
5.2.1. Capability Deficit and Limited Ecosystem Embeddedness
N1 combines the absence of digital technology application, digital strategic planning, firm social capital, and a favorable digital policy environment, while competitive intensity is unrestricted. This configuration reflects more than a shortage of individual resources. It indicates a cumulative capability constraint in which weak internal foundations and limited external support coexist.
Internally, insufficient technological application limits firms’ experience in integrating digital tools into core services, while the absence of strategic direction weakens the coordination of digital investment, capability development, and business redesign. These two conditions reinforce a fragmented pattern of digitalization in which isolated technological initiatives are difficult to translate into broader organizational change. Externally, weak social capital and an unfavorable policy environment further restrict access to knowledge, partners, policy resources, and other forms of support that could compensate for internal capability gaps. The problem is therefore not simply that several favorable conditions are absent, but that firms lack both the internal basis for capability accumulation and the external channels through which those capabilities might be supplemented or accelerated [
57].
This combination can keep digital development at a relatively low level. Without sustained technological learning, strategic coordination, or external resource mobilisation, firms have limited scope to move from incremental digital applications toward more systematic transformation. C16 illustrates this pattern. The firm remained dependent on traditional processes and established clients, lacked a systematic digital strategy and core digital platform, and had limited engagement with policy projects, technology providers, and industry networks. Its digital development consequently remained fragmented and incremental.
5.2.2. Relational Buffering and Transformation Inertia
N2 combines the absence of digital technology application, digital strategic planning, and competitive intensity with the peripheral presence of firm social capital; the digital policy environment is unrestricted. Unlike N1, this configuration is not characterized by a general shortage of resources. Instead, it reflects a situation in which existing relational resources support organizational continuity but are not redirected toward digital renewal.
Firm social capital can provide stable clients, business opportunities, institutional connections, and access to external resources. When competitive pressure is weak, however, these relationships can also buffer firms from the immediate need to reconsider established service models. The absence of digital strategic planning further limits the organizational direction required to redeploy relational resources toward technology development, process redesign, or new digital services. As a result, resources that are valuable for sustaining current operations may remain tied to existing business routines rather than being recombined for digital capability building.
This configuration therefore reflects a deeper problem of path dependence and resource reconfiguration. Established relationships make the existing business model viable, while weak competitive pressure reduces the urgency of departing from familiar routines. In the absence of a strategic mechanism for redirecting resources, firms may continue to exploit established relational advantages rather than use them to support digital renewal. Over time, this pattern can reinforce transformation inertia: the firm is not constrained by resource scarcity, but by the persistence of a resource-allocation logic that favors continuity over reconfiguration [
58,
59].
C06 illustrates this pattern. Its regional clients and cooperation networks provided a stable basis for ongoing services, while its digital systems remained focused on information aggregation and basic service functions rather than being integrated into a broader digital transformation strategy.
5.3. Theoretical Implications
This study offers three theoretical implications. First, it extends the TOE perspective by showing that technological, organizational, and environmental conditions are better understood configurationally than as independent and additive factors associated with digital transformation. Prior research has established the relevance of technological capability, strategic orientation, and environmental support, whereas our findings further show that their importance depends on the configurations in which they are embedded. Digital transformation in HRS firms is therefore better understood as the alignment of complementary conditions rather than the accumulation of isolated advantages.
Second, the findings qualify technology-centered explanations of digital transformation. Consistent with prior research, digital technology application appears in most configurations associated with high transformation, confirming its important enabling role. However, it does not constitute a necessary condition in the set-theoretic sense, and high transformation can also occur when high digital technology application is not a defining requirement. Thus, the findings do not diminish the importance of technology; rather, they show that its role in high-transformation configurations varies with its combination with strategic direction, competitive pressure, and complementary resources.
Third, the study extends relational-resource research by revealing the configuration dependent role of firm social capital in HRS firms. External relationships can provide information, legitimacy, cooperation opportunities, and access to resources, but social capital does not uniformly support digital transformation. It complements high transformation in some configurations, yet can coexist with non-high transformation when technological and strategic foundations are weak. This finding highlights the importance of resource orchestration and further demonstrates that the configurations associated with high and non-high digital transformation are asymmetric.
5.4. Managerial and Policy Implications
HRS firms should select transformation pathways that fit their resource endowments rather than imitate a single industry benchmark. Firms with strong technology and professional knowledge should strengthen digital strategic planning so that applications are integrated into core service processes. Firms facing intense competition can use market pressure as a trigger for scenario-specific innovation, but short-term technology purchases should be avoided when they are disconnected from a coherent strategy.
For firms with extensive relational and institutional resources, the priority is to convert those resources into platforms, data partnerships, and service innovation rather than use them only to preserve existing business. Conversely, firms with weak technology, strategy, and ecosystem links require coordinated capability building; isolated subsidies or relationship-based support are unlikely to be sufficient.
Policy makers and industry associations should recognize that policy support has a conditional rather than deterministic role. Public programs can be more effective when they combine financial or project support with capability assessment, technical partnerships, shared infrastructure, and opportunities for firms to test digital services in real operational settings.
6. Conclusions
6.1. Main Conclusions
Using grounded theory and fsQCA, this study examined the configurational patterns associated with digital transformation in Beijing HRS firms. The qualitative phase identified five relevant conditions: digital technology application, digital strategic planning, firm social capital, the digital policy environment, and competitive intensity. The quantitative phase yielded five high-outcome solution terms, which were interpreted through three broader configurational patterns, together with two configurations associated with non-high digital transformation.
Four conclusions emerge. First, no single necessary condition or universally optimal pathway exists. Firms with different capabilities and environments can reach the same outcome through differentiated configurations. Second, digital technology application, digital strategic planning, and competitive intensity form the principal axes of the high-outcome configurations, but the role of each condition depends on the configuration in which it is embedded. Third, firm social capital and the digital policy environment mainly play contextual enabling roles; their value depends on technological absorption, strategic integration, and market responsiveness. Fourth, the configurations associated with high and non-high digital transformation exhibit causal asymmetry. Non-high transformation is associated with either a systemic absence of internal and external conditions or the coexistence of relational resources with weak technological and strategic foundations.
Overall, digital transformation in HRS firms is a context-dependent and configurational process. Its central challenge is not simply to invest in technology but to align technology, strategy, relational resources, policy opportunities, and market response within a coherent service innovation system. Such alignment also provides an organizational foundation for more sustainable HRS provision through improved service efficiency, labor-market matching, and access to employment-related services.
6.2. Limitations and Future Research
First, the findings are bounded by the Beijing context. Beijing has relatively strong technological, policy, and professional resources, while the present sample also includes a relatively high proportion of larger and state-owned or state-controlled firms. These characteristics may shape firms’ access to digital capabilities, institutional support, and external networks. The identified configurations should therefore be interpreted primarily as patterns observed among the sampled Beijing HRS firms rather than as representative of all HRS firms in China. Future research could examine firms across different regions and organizational sizes, particularly SMEs outside major metropolitan areas, to assess the transferability and boundary conditions of these configurations.
Second, although the interview narratives provide process-oriented evidence showing that several identified conditions were already present or evolving during the initiation and development of firms’ digital transformation, the quantitative analysis remains cross-sectional and therefore cannot establish temporal ordering conclusively or rule out reciprocal relationships. Higher levels of digital transformation may, in turn, reinforce strategic planning, facilitate resource accumulation, or expand firms’ external relational networks. The configurational results should therefore be interpreted primarily as contemporaneous set-theoretic sufficiency relationships rather than as evidence of unidirectional temporal causation. Future research using longitudinal case studies, panel data, or dynamic QCA could examine temporal sequencing, reciprocal reinforcement, and the evolution of configurations over time.
Third, the antecedents are concentrated at the firm and environmental levels. Managerial digital cognition, leadership, absorptive capacity, organizational inertia, employee digital skills, and change acceptance may shape how firms convert technology, policy, and relational resources into transformation outcomes. Future research could directly measure these mechanisms and develop multilevel configurational models.
Fourth, the outcome is digital transformation level rather than its downstream consequences. Different high-outcome pathways may generate different levels of operational efficiency, innovation, service quality, resilience, or business-model renewal. Future work could examine an antecedent configuration–transformation pathway–performance consequence framework and compare the durability and risks of alternative pathways.