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The increasing popularity of ERP solutions has provided dietary supplement manufacturing companies with modules to manage pricing and inventory. However, the decisions made by these modules are often independent and rely on deterministic forecasts. This paper studies a multi-product dietary supplement manufacturing system under stochastic demands. The purpose is to maximize the long-run expected profit by jointly considering pricing and inventory strategies.

The authors investigate both the general cases and three special cases including stable demand, negligible backlog and instantaneous replenishment. A two-stage algorithm named PAS is proposed. In the strategy construction stage, the constructed objective bounds are combined to provide estimates which then help to derive the optimal product prices. In the system operation stage, replenishment decisions are further made based on the prices generated from the previous stage.

It is proved that base-stock policy is optimal for the studied system, and the optimal based-stock level is provided. The global optimal strategies are obtained for three important special cases. For the general case, theoretical objective bounds are established. These bounds provide quick and reliable performance estimates for practical applications.

Very few studies have jointly considered pricing and inventory strategies with uncertainty demands in the dietary supplement industry. The PAS algorithm developed integrates these decisions and consistently generates high-quality solutions even under highly varying demands. Such algorithm could be a valuable add-on to the pricing and inventory management modules in ERP systems.

1. Understand how the corporate lifecycle could trigger a necessity of making a tough decision to develop new business ventures based on the corporate lifecycle theory; and how changes in the external environment could hasten such a decision.

2. Analyze how a company can leverage its internal organizational structure to share and utilize cross-departmental resources and capabilities to support new venture businesses according to the synergy effect perspective.

3. Undertake a resource-based view analysis to evaluate the external and internal resources needed for corporate new venture development.

4. Identify the best course of action for the decision-maker by comparing, contrasting, applying and evaluating the two different models of corporate new venture development in the e-commerce business: the centralized organizational model and the decentralized organizational model and evaluate the pros and cons associated with each mode in the context of Dahan’s external and internal environments.

Since its inception in 2003, Dahan’s traditional business in SMS (Short Message Services) and data had gained thousands of customers across China and won top rankings in the industry. Despite its achievements, Dahan encountered difficulties when it entered the new e-commerce market, as the domain knowledge about the new business was very different from the domain knowledge in its traditional business. Furthermore, the emerging B2B e-commerce industry was very different from the traditional business in that the former mainly targeted corporate clients and the latter targeted individual customers in the B2C industry. This case examined the critical decisions that Xiaofen Huang, the CEO of Dahan E-Commerce Corporation and Co-Founder of Dahan Tricom Group, had to make and external, especially Internal, resources the Dahan Group needed in developing its new venture.

Specifically, this case explored how Huang would go through the mental process to make the best possible decision to help the company not only to survive, but also thrive in the rapidly-changing and competitive digital environment: it urgently needed to finalize an organizational incubation model to support the further development of its e-commerce and future new venture activities with two options to choose from: the centralized organizational model or the decentralized organizational model. A key challenge facing Huang was to decide which option was best suited to motivate salespeople in different departments to help one another, especially in the new B2B e-commerce business and to grow that new business.

In the case, Dahan’s growth aspirations and its motivation to transform its traditional business into a new e-commerce business were discussed. Second, when external challenges were examined, how Dahan explored the B2B e-commerce business using a trial-and-error learning process was explained. Third, when internal challenges were examined, how Dahan incubated its new B2B e-commerce business and its practices for leveraging and sharing resources/capabilities, as well as cross-departmental and cross-divisional collaboration through a resource-based lens, were illustrated. Last, the most critical learning in the case presented an immediate decision-making dilemma on which organizational incubation models to choose from for further new business development, where students learn to analyze both external and internal factors and consider Dahan’s available resource and founder’s aspiration, available strategic options to derive a best possible decision to suit the stage of the company’s lifecycle and founders’ vision.

This case was designed for use in undergraduate courses on corporate innovation, new venture development, corporate innovation, corporate entrepreneurship, e-commerce and growth.

Teaching notes are available for educators only.

CSS 11: Strategy.

The purpose of this paper is to summarize the status and characteristics of rail technology of high-speed railway in China, and point out the development direction of rail technology of high-speed railway.

This study reviews the evolution of high-speed rail standards in China, comparing their chemical composition, mechanical attributes and geometric specifications with EN standards. It delves into the status of rail production technology, shifts in key performance indicators and the quality characteristics of rails. The analysis further examines the interplay between wheels and rails, the implementation of grinding technology and the techniques for inspecting rail service conditions. It encapsulates the salient features of rail operation and maintenance within the high-speed railway ecosystem. The paper concludes with an insightful prognosis of high-speed railway technology development in China.

The rail standards of high-speed railway in China are scientific and advanced, highly operational and in line with international standards. The quality and performance of rail in China have reached the world’s advanced level. The 60N profile guarantees the operation quality of wheel–rail interaction effectively. The rail grinding technology system scientifically guarantees the long-term good service performance of the rail. The rail service state detection technology is scientific and efficient. The rail technology will take “more intelligent” and “higher speed” as the development direction to meet the future needs of high-speed railway in China.

The development direction of rail technology for high-speed railway in China is defined, which will promote the continuous innovation and breakthrough of rail technology.

This study aims to explore how online reviews and users’ social network centrality interact to influence idea popularity in open innovation communities (OICs).

This study used Python to obtain data from the LEGO Innovation Community. In total, 285,849 reviews across 4,475 user designs between March 2019 and March 2021 were extracted to test this study’s hypotheses.

The ordinary least square regression analysis results show that review volume, review valence, review variance and review length all positively influence idea popularity. In addition, users’ in-degree centrality positively interacts with review valence, review variance and review length to influence idea popularity, while their out-degree centrality negatively interacts with such effects.

Drawing on the interactive marketing perspective, this study employs a large sample from the LEGO community and examines user design and idea popularity from a community member’s point of view. Moreover, this study is the first to confirm the role of online reviews and user network centrality in influencing idea popularity in OICs from a social network perspective. Furthermore, by integrating social network analysis and persuasion theories, this study confirms the interaction effects of review characteristics and users’ social network centrality on idea popularity.

This study’s results highlight that users should actively interact and share with reviewers their professional product design knowledge and/or the journey of their design to improve the volume of reviews on their user designs. Moreover, users could also draw more attention from other users by actively responding to heterogeneous reviews. In addition, users should be cautious with the number of people they follow and ensure that they improve their in-degree rather than out-degree centrality in their social networks.

This study integrates social network analysis and persuasion theories to explore the effects of online reviews and users’ centrality on idea popularity in OICs, a vital research issue that has been overlooked.

This study aims to analyse how consumers' perceptions of justice in a service recovery scenario vary, not only due to the company's actions but also due to the comparisons they make with the experiences of other consumers.

Based on justice theory, social comparison theory and referent cognitions theory, this study describes an eight-scenario experiment with better or worse interactional, procedural and distributive justice (better/worse interactional justice given to other consumers) × 2 (better/worse procedural justice given to other consumers) × 2 (better/worse distributive justice given to other consumers).

First, consumers' perceptions of interactional, procedural and distributive justice vary based on the comparisons they draw with other consumers' experiences. Second, the results confirmed that interactional justice has a moderating effect on procedural justice, whereas procedural justice does not significantly moderate distributive justice.

First, based on justice theory, social comparison theory and referent cognitions theory, we focus on the influence of the treatment received by other consumers on the consumer's perceived justice in the same service recovery situation. Second, it is proposed that the three justice dimensions follow a defined sequence through the service recovery phases. Third, to the best of the authors' knowledge, this study is the first to propose a multistage model in which some justice dimensions influence other justice dimensions.

: 本研究擬探討在服務補救的處境裡, 消費者對公平的看法不但會受公司的行動所影響, 同時也會因他們與其他消費者的經驗作比較而有所改變。

: 本研究根據正義理論、社會比較理論和參照認知理論, 描述一個涵蓋八個處境的實驗, 實驗包含更好的或更差的互動的、程序上的和分配性的公平 (給予其他消費者更好的/更差的互動公平) × 2(給予其他消費者更好的/更差的程序上的公平) × 2 (給予其他消費者更好的/更差的分配性的公平)。

: 研究結果顯示, 消費者對互動的、程序上的和分配性公平的看法, 是會根據他們與其他消費者的體驗所作的比較而有所改變; 研究結果亦確認了互動的公平對程序上的公平會有調節作用, 而程序上的公平對分配性的公平則沒有顯著的調節作用。

: 首先, 我們根據正義理論、社會比較理論和參照認知理論, 把研究焦點放在於相同的服務補救情景中, 其他消費者受到的待遇, 如何影響消費者自身的認知公平; 另外, 我們建議, 這三個公平維度, 在各個服務補救階段裡, 均會跟隨一個清晰的次序。最後, 就研究人員所知, 本研究為首個提出一個公平維度互為影響的多階段模型的研究。

The purpose of this paper is to study the effects of introducing a health insurance program in rural China between 2004 and 2006, the New Cooperative Medical Scheme (NCMS).

The authors apply difference in difference and propensity score matching methods (PSM-DID) to a widely used panel dataset, the China Health and Nutrition Survey (CHNS). Findings are robust across several treatment and comparison groups used in previous NCMS studies.

Households who participated in NCMS increased the use of preventive services and western medicine, while lowering the use of traditional Chinese medicine. NCMS also reduced hospital use, out of pocket payments, travel time to healthcare facilities and waiting time to see doctors. The authors estimate that reductions in travel and waiting time saved roughly 52m U.S. dollars in 2006.

Previously divergent findings on health insurance effects may be due to researchers studying health insurance across different healthcare delivery systems. In addition, in estimating how health insurance access affects healthcare costs, the authors should consider economic costs related to the time needed to access health services.

The authors study how health insurance access affects patients' choice of providers and economic costs to accessing health care services, outcomes that have not received much attention previously. The authors depart from previous NCMS studies by comparing several different approaches to identifying treatment and control groups when applying PSM-DID.

The purpose of this paper is to produce a high-quality measure of the nature of healthcare resources available in China’s Township Health Centers (THCs), paying particular attention to equity between high- and low-income areas.

This study makes use of data from a nearly nationally representative survey in rural China conducted by the Center for Chinese Agricultural Policy at the Chinese Academy of Sciences in 2011. The samples of towns were selected randomly from 25 counties located in five provinces from different regions of China. Data were collected through questionnaires and direct observation.

The THCs located in rich areas have higher levels of human resources than poor areas. THCs in rich areas also have more fixed assets than those in poor areas. In fact, even though the Chinese Ministry of Health mandates that all THCs have certain basic levels of medical equipment and facilities, many THCs in poor areas do not have them. The allocation of mandated equipment is unequal.

These findings suggest that China’s government should pay more attention to THCs located in poor areas, especially in light of new initiatives to improve health care in poor rural areas.

This is the first nationally representative study to employ rigorous empirics to investigate the extent of inequality in allocation of resources within THCs across China.