市场的本质、内容与特征

本文认为,市场是买卖交易得以顺利进行的前提,是买卖交易制度体系;它由产权制度、交易行为制度和文化伦理三部分构成。现代市场还包括社会保障制度,是上述各部分耦合而成的有机整体;市场的基本特征是自利性、自愿性、平等性和竞争性;社会主义市场体制建设的关键是由政府创建一个公平的、可预见的、具有激励作用的制度框架,规范买卖交易关系,激励各主体高效地从事经济活动。     

Technology,Geography, and Trade

We develop a Ricardian trade model that incorporates realistic geographic features into general equilibrium. It delivers simple structural equations for bilateral trade with parameters relating to absolute advantage, to comparative advantage (promoting trade), and to geographic barriers (resisting it). We estimate the parameters with data on bilateral trade in manufactures, prices, and geography from 19 OECD countries in 1990. We use the model to explore various issues such as the gains from trade, the role of trade in spreading the benefits of new technology, and the effects of tariff reduction.     

Key Characteristics of the Large Innovating Firm*

Large innovating firms are a major source of the world's technology, and in the 20th century have shown great resilience in absorbing successive waves of radical innovations. The key characteristics of these firms derive from the properties of their innovative activities. First, given the specific, differentiated and cumulative nature of technological development, the range of possible choices about both product and processed technologies open to the firm depends on its accumulated competence. Second, given functional and professional specialization, the implementation of technological choices requires organization and orchestration across disciplinary, functional and divisional boundaries. Third, given cumulative development and uncertainty, the improvement of these competences requires continuous and collective learning. Fourth, in the light of these characteristics, systems for allocating resources must take into account the benefits of learning by doing, as well as the benefits of outcomes. As a consequence, the technical function in large firms involves not just the implementation of innovations, but also the definition of appropriate divisional objectives and boundaries, the exploration of radical technologies, and the formation of technological expectations about the future.     

Potential gains from specialization and diversification further to the reorganization of activities

In economic activities, two main forces guide firm and market structures: specialization and diversification. This paper provides new insights on this topic. We propose measuring gains due to simulated division and/or merger processes of firms. Potential gains come from a reorganization of activities through specialization/diversification and/or size effects. From a database of French farms, our findings demonstrate that even if both processes are beneficial for farming systems, the division gains outweigh the gains obtained by a merger. Moreover, mix changes are more important following a division than following a merger, implying more specialization gains than diversification gains.     

ECOLOGY,TRADE, AND STATES IN PRE‐COLONIAL AFRICA

State capacity matters for growth. I test Bates' explanation of pre‐colonial African states. He argues that trade across ecological boundaries promoted states. I find that African societies in ecologically diverse environments had more centralized states. This is robust to reverse causation, omitted heterogeneity, and alternative interpretations of the link between diversity and states. The result survives including non‐African societies. I test mechanisms connecting trade to states, and find that trade supported class stratification between rulers and ruled. I underscore the importance of ethnic institutions and inform our knowledge of the effects of trade on institutions.     

Managing the Risk of Aggressive Dog Behavior: Investigating the Influence of Owner Threat and Efficacy Perceptions

Aggressive behavior in pet dogs is a serious problem for dog owners across the globe, with bite injuries representing a serious risk to both people and other dogs. The effective management of aggressive behavior in dogs represents a challenging and controversial issue. Although positive reinforcement training methods are now considered to be the most effective and humane technique to manage the risk of aggression, punishment‐based methods continue to be used. Unfortunately, there has been little scientific study into the various factors influencing whether dog owners choose to use positive reinforcement techniques to manage aggression in their dogs. As such, current understanding of how best to encourage and support dog owners to use these methods remains extremely limited. This article uses a survey methodology based on protection motivation theory (PMT) to investigate the factors that influence owner use of positive reinforcement methods to manage aggressive behavior, in an attempt to understand potential barriers and drivers of use. In addition, the article provides an initial exploration of the potential role of wider psychological factors, including owner emotional state, social influence, and cognitive bias. Findings show that the perceived efficacy of positive reinforcement methods and the perceived ability of owners to effectively implement the technique are both key factors predicting future intentions and current reported use. Future interventions should focus on enhancing owner confidence in the effective use of positive reinforcement techniques across multiple scenarios, as well as helping owners manage their own emotional responses when they encounter challenging situations and setbacks.     

Trade Liberalization and Labor Market Dynamics

This paper estimates a structural dynamic equilibrium model of the Brazilian labor market in order to study trade‐induced transitional dynamics. The model features a multi‐sector economy with overlapping generations, heterogeneous workers, endogenous accumulation of sector‐specific experience, and costly switching of sectors. The model's estimates yield median costs of mobility ranging from 1.4 to 2.7 times annual average wages, but a high dispersion of these costs across the population. In addition, sector‐specific experience is imperfectly transferable across sectors, leading to additional barriers to mobility. Using the estimated model for counterfactual trade liberalization experiments, the main findings are: (1) there is a large labor market response following trade liberalization but the transition may take several years; (2) potential aggregate welfare gains are significantly reduced due to the delayed adjustment; (3) trade‐induced welfare effects depend on initial sector of employment and on worker demographics such as age and education. The experiments also highlight the sensitivity of the transitional dynamics with respect to assumptions regarding the mobility of capital.     

Breadth versus Depth: The Timing of Specialization in Higher Education

This paper examines the trade‐off between early and late specialization in the context of higher education. I develop a model in which individuals accumulate field‐specific skills and receive noisy signals of match quality across different fields of study. I derive comparative static predictions between educational regimes with early and late specialization, and examine these predictions across British systems of higher education. Using survey data on 1980 university graduates, I find that individuals who switch to unrelated occupations have lower initial earnings, and that early specialization in England is associated with more costly switches. But higher wage growth among those who switch eliminates the wage difference after several years, and average earnings are not significantly different between England and Scotland.     

Is there a trend towards global value chain specialization? — An examination of cross border sales of US foreign affiliates

In this study we discuss and empirically test the assertion that over the last two decades multinational enterprises' (MNEs') configuration of value-adding activities has shifted from a sparse and simple (host–home) international division of labor among the foreign affiliates to a more specialized and ‘advanced’ global value chain configuration in which MNEs locate fine-sliced parts of the value chain at the most efficient locations. Using data on trade flows of U.S. affiliates in 56 host countries between 1983 and 2003 we find some indications of a trend in the direction of global value chain specialization. In particular among US affiliates in developing countries the proportion of host–host, intra-firm trade has increased significantly during the observed period of time. Conversely, the proportion of host–home and inter-firm trade has diminished. We interpret this as indicating both value chain disaggregation (vertical specialization) and MNEs' systematic exploitation of factor cost differentials across countries. We also find that the absolute levels of all types of trade flows have increased. Hence, it is the relative, and not the absolute, changes in the trade flow patterns of US affiliates that gives credibility to the global value chain assertion.     

My Loss Is Your Loss … Sometimes: Loss Aversion and the Effect of Motivational Biases

Findings from previous studies of individual decision-making behavior predict that losses will loom larger than gains. It is less clear, however, if this loss aversion applies to the way in which individuals attribute value to the gains and losses of others, or if it is robust across a broad spectrum of policy and management decision contexts. Consistent with previous work, the results from a series of experiments reported here revealed that subjects exhibited loss aversion when evaluating their own financial gains and losses. The presence of loss aversion was also confirmed for the way in which individuals attribute value to the financial gains and losses of others. However, similar evaluations within social and environmental contexts did not exhibit loss aversion. In addition, research subjects expected that individuals who were unknown to them would significantly undervalue the subjects' own losses across all contexts. The implications of these findings for risk-based policy and management are many. Specifically, they warrant caution when relying upon loss aversion to explain or predict the reaction of affected individuals to risk-based decisions that involve moral or protected values. The findings also suggest that motivational biases may lead decisionmakers to assume that their attitudes and beliefs are common among those affected by a decision, while those affected may expect unfamiliar others to be unable to identify and act in accordance with shared values.     

Utilitarian,managerial and relational theories of corporate social responsibility

Concepts and theories of corporate social responsibility (CSR) have been examined and classified by scholars since the mid‐1970s. However, owing to the evolving meaning of CSR and the huge number of scholars who have begun to analyze the issue in recent years fresh efforts are needed to understand new developments. Since there is a great heterogeneity of theories and approaches, the task remains a very hard one, mainly because heterogeneity derives from multi‐disciplinary diversity. The criterion for selection is to consider the role that theorists confer to the firm. Following this idea, three groups of theories have been discerned: (1) the utilitarian group, in which the corporation is intended as a maximizing ‘black box’ where problems of externalities and social costs emerge; (2) the managerial category, where problems of responsibility are approached from inside the firm (internal perspective); (3) relational theories, or those in which the type of relations between the firm and the environment are at the center of the analysis. The three perspectives allow the reader to understand the most significant differences between the various theories of CSR. The objective is to classify the theories and to draw a map in which group specificities can be made available. This allows scholars to reach a better understanding of corporate–society relations, and enhances developments both in theoretical and empirical terms.     

加征关税下的跨国供应链决策及补贴策略研究

本文讨论加征关税视角下的供应链决策及补贴策略问题。基于本国制造商、分销商与国外进口零售商所组成的三级跨国供应链,分别讨论了政府不补贴、政府补贴下的供应链决策,研究加征关税和补贴对供应链的影响,并分析保持产品销售价不变补贴策略(I)、保持制造商利润不变补贴策略(II)及社会福利最大化补贴策略(III)的效应。结果表明,加征关税导致产品销售价增大和本国企业批发价、供应链各企业利润及社会福利的降低,但政府提高补贴使得产品销售价减小和供应链各企业利润增大,而社会福利随着补贴的增大先增大后减小。随着加征关税税率及补贴的增大,供应链更多地表现为补贴的作用,补贴能有效减小加征关税的影响。在较低关税税率下,策略(III)激励产品出口作用显著,但政府补贴支出过高;策略(II)相较策略(I)激励效果更显著,但补贴支出更大。在较高关税税率下,策略(II)更能激励制造商出口,策略(I)以较低的补贴支出激励制造商出口,更有利于维持国际市场稳定。     

Social capital and business and management: Setting a research agenda

This paper adopts the template of systematic reviewing and provides an up-to-date synthesis of the literature on social capital and business and management. The review demonstrates that social capital research is concentrated into three core dimensions: structural, relational and cognitive. First, structural social capital includes social interaction and the frequency of contact and connectivity levels among and between actors' network relations. Secondly, relational social capital refers to the underlying normative conditions of trust, obligation, expectation and identity that guide actors' network relations. Thirdly, cognitive social capital refers to the meaningful contexts of communication among and between actors, and includes the shared language, codes and narratives used to create understanding. However, the rich linkages between structural, relational and cognitive social capital across equivalent/hierarchical social space and geographical boundaries are neglected. A further research focus identified is that the role of face-to-face and the increasingly routine tool of electronic mediated communication may produce different characteristics and levels of social capital. The paper also discusses the ways in which critical realism and mixed methodology may enhance understanding of the process-based linkages between structural, relational and cognitive social capital.     

Interactions in new product development: How the nature of the NPD process influences interaction between teams and management

Effective interaction across organisational boundaries is a critical success factor in new product development (NPD). However, few studies have investigated how different mechanisms enable effective interaction across organisational and particularly hierarchical boundaries.This study explores how the formality of the NPD process influences the nature of interactions across different organisational boundaries and specifically identifies interaction mechanisms used across hierarchical boundaries. Cross-sectional interviews were conducted in nine firms. Findings highlight that in firms with a formalised NPD process, interactions tend to have a transactional/managerial bias. In contrast, in firms where the NPD process is flexible, interactions have a more social objective.     

Estimating the Health Impacts of Tobacco Harm Reduction Policies: A Simulation Modeling Approach

With adult smoking prevalence rates declining too slowly to reach national objectives, opinion leaders are considering policies to improve tobacco-related outcomes by regulating the composition of cigarettes to be (1) less harmful and/or (2) less addictive. Because harm reduction efforts may actually encourage higher cigarette consumption by promoting a safer image, and addictiveness reduction may increase the harmfulness of cigarettes by encouraging compensatory smoking behaviors, policymakers must consider the tradeoffs between these two approaches when proposing legislation to control cigarette content. To estimate health impacts, we developed a dynamic computer model simulating changes in the age- and gender-specific smoking behaviors of the U.S. population over time. Secondary data for model parameters were obtained from publicly available sources. Population health impacts were measured as change in smoking prevalence and the change in cumulative quality-adjusted life-years (QALYs) in the U.S. population over 75 years. According to the risk-use threshold matrix generated by the simulation, modifying cigarettes to reduce their harmfulness and/or addictiveness could result in important gains to the nation's health. Addictiveness reduction efforts producing a 60% improvement in smoking behavior change probabilities would produce a net gain in population health at every plausible level of increase of smoking-related harm that was modeled. A 40% reduction in smoking-related harm would produce a net QALY gain at every level of behavior change considered. This research should prove useful to policymakers as they contemplate giving the FDA the authority to regulate the composition of cigarettes.     

Complementary Drivers of New Product Development Performance: Cross‐Functional Coordination,Information System Capability,and Intelligence Quality

Coordination efforts that access and align relevant cross‐functional expertise are regarded as an essential element of innovation success. In recent years, these efforts have been further augmented through complementary investments in information systems, which provide the technological platforms for information sharing and coordination across functional and organizational boundaries. Somewhat overlooked has been the critical mediating role of the intelligence gained through these efforts and capabilities. This study draws on the theory of complementarity to elaborate on the nature of this mediating concept. Theoretical predictions of the model are tested using instrument variable regression analysis of data collected from a sample of publicly traded US manufacturing firms. The findings suggest that the effects of both internal and external coordination on market intelligence and supply‐chain intelligence are moderated by the firm's information system capability. The effect of both types of intelligence quality on new product development performance was contingent with the effects being enhanced (attenuated) when the market conditions were dynamic (stable). The results are robust to common‐method bias, endogeneity concerns, and alternative estimation methods.     

Growth,Trade and Factor Endowment: A Survey

This paper examines the relationship between factor endowment, human capital formation and trade in the theory of economic growth. The paper analyses the evolution of the idea that both trade and human capital play a leading role in explaining country performance and development. Economic growth, dynamic comparative advantage, international specialization and cumulative technological progress are identified as the key ingredients that explain why countries perform differently and, at the same time, why they may tend to converge towards a common benchmark.     

Product Differentiation,Multiproduct Firms,and Estimating the Impact of Trade Liberalization on Productivity

This paper studies whether removing barriers to trade induces efficiency gains for producers. Like almost all empirical work which relies on a production function to recover productivity measures, I do not observe physical output at the firm level. Therefore, it is imperative to control for unobserved prices and demand shocks. I develop an empirical model that combines a demand system with a production function to generate estimates of productivity. I rely on my framework to identify the productivity effects from reduced trade protection in the Belgian textile market. This trade liberalization provides me with observed demand shifters that are used to separate out the associated price, scale, and productivity effects. Using a matched plant–product level data set and detailed quota data, I find that correcting for unobserved prices leads to substantially lower productivity gains. More specifically, abolishing all quota protections increases firm‐level productivity by only 2 percent as opposed to 8 percent when relying on standard measures of productivity. My results beg for a serious reevaluation of a long list of empirical studies that document productivity responses to major industry shocks and, in particular, to opening up to trade. My findings imply the need to study the impact of changes in the operating environment on productivity together with market power and prices in one integrated framework. The suggested method and identification strategy are quite general and can be applied whenever it is important to distinguish between revenue productivity and physical productivity.     

Insurance,Public Assistance,and Household Flood Risk Reduction: A Comparative Study of Austria,England, and Romania

In light of increasing losses from floods, many researchers and policymakers are looking for ways to encourage flood risk reduction among communities, business, and households. In this study, we investigate risk‐reduction behavior at the household level in three European Union Member States with fundamentally different insurance and compensation schemes. We try to understand if and how insurance and public assistance influence private risk‐reduction behavior. Data were collected using a telephone survey (n = 1,849) of household decisionmakers in flood‐prone areas. We show that insurance overall is positively associated with private risk‐reduction behavior. Warranties, premium discounts, and information provision with respect to risk reduction may be an explanation for this positive relationship in the case of structural measures. Public incentives for risk‐reduction measures by means of financial and in‐kind support, and particularly through the provision of information, are also associated with enhancing risk reduction. In this study, public compensation is not negatively associated with private risk‐reduction behavior. This does not disprove such a relationship, but the negative effect may be mitigated by factors related to respondents' capacity to implement measures or social norms that were not included in the analysis. The data suggest that large‐scale flood protection infrastructure creates a sense of security that is associated with a lower level of preparedness. Across the board there is ample room to improve both public and private policies to provide effective incentives for household‐level risk reduction.