基于SFA的我国航空航天制造业技术效率分析

航空航天制造业是国家的战略性产业,在国防现代化和国民经济建设中发挥着重要的作用。技术效率作为体现科技含量带来的成效以及投入-产出之间关系的参量,能够较好地衡量和反映企业的生产效率和发展内涵。本文运用SFA方法,以近9年间的面板数据为依据,对我国航空航天制造业技术效率问题进行了探讨,分析了影响技术效率的相关因素,提出了改善和提高技术效率的建议。     

High heels

Regarded by some as women's power tool and by others as instruments of torture, high heels constitute one of the most polarizing marketplace icons today. Why did the noblemen's footwear of choice become one of the most celebrated icons of femininity, and how? This article attempts to shed light on these questions by focusing on the actors and practices that have influenced the development of cultural meanings we come to associate with high heels.     

Trade networks and colonial trade spillovers

This paper provides new empirical evidence regarding the formation of international trade networks. Established trade relations may open the gate to new trade opportunities, as they allow meeting new trade partners over time. We test this prediction and its implications for aggregate trade patterns by using the experience of ancient trade linkages between former colonies and their former colonizers (colonial trade linkages). We first show, using aggregate trade data, that former colonies have more trade with former colonizer's neighbors (colonial trade spillovers). We then show that the past export and import experience of former colonies with the colonizer have an impact on the propensity to trade similar products with third countries. In particular, the trade spillover effect is negatively related to geographical distance between third countries and the colonizer, and positively affected by their degree of economic integration.     

Multilateral Trade Liberalisation and Foreign Direct Investment Inflows

This paper investigates two questions: how does multilateral trade liberalisation affect inward foreign direct investment, and does this impact (if any) depend on the domestic trade policy? The analysis uses a panel data set comprising 171 countries spanning the period 1995–2012. Results indicate that multilateral trade policy liberalisation is conducive to higher FDI inflows in host countries. Furthermore, our evidence suggests that domestic trade policy almost always positively drives inward FDI in a context of multilateral trade policy liberalisation. Countries which initially have the most restrictive trade policy regimes appear to be the greatest beneficiaries of FDI inflows when they liberalise their trade policy in the context of multilateral trade liberalisation.     

Is less information better information? Evidence from the credit rating withdrawal

This paper examines the stock market reaction to two different types of credit rating withdrawals by Moody’s. The first type of withdrawal occurs when a firm stops being rated. This happens, for example, when firms choose to no longer pay for a rating. We find that the stock market reaction depends on the information which remains available. The second type of withdrawal is due to Moody’s policy of removing the issuer rating and keeping the corporate family rating for the same firm. The corporate family rating is usually more favorable than the issuer rating. The paper shows that the removal of the issuer rating leads to positive stock market reaction. We conclude that lower disclosure of rating information is not necessarily associated with higher cost of equity. Instead, our findings emphasize the incentive for firms to engage in ratings shopping by publishing only the most favourable ratings.     

A rank-dependent utility approach to model intra- and inter-individual heterogeneity in risky choice behaviours

ABSTRACT

Using a stated preferences survey, the objective of this paper is to investigate the intra- and inter-individual heterogeneity of mode choice, when travel time is subject to variability. By‘inter-individual heterogeneity’ is meant that people are different in terms of attitude to risk and have different utility functions. By ‘intra-individual heterogeneity’ is meant that the behaviour may be different even when performed by the same individual when faced with a different mode of transport. Based on Rank-Dependent Utility Theory, the paper shows that the occurrence of delays associated with train trips is overestimated whereas they are underestimated for car trips. A latent-class logit model offers a somewhat different perspective: if, overall, car users are more likely to perceive possible delays for train trips than for car trips, train users tend to consider the objective occurrence of delays as they are presented in the survey and adopt a risk neutral choice behaviour.     

Integration and search engine bias

We study the effects of integration between a search engine and a publisher. In a model in which the search engine (i) allocates users across publishers and (ii) competes with publishers to attract advertisers, we find that the search engine is biased against publishers that display many ads – even without integration. Integration can (but need not) lead to own‐content bias. It can also benefit consumers by reducing the nuisance costs due to excessive advertising. Advertisers are more likely to suffer from integration than consumers. On net, the welfare effects of integration are ambiguous.     

Effects of Construal Level on Omission Detection and Multiattribute Evaluation

Research has demonstrated that consumers are commonly insensitive to missing information and that this insensitivity can lead them to form strong beliefs and evaluations on the basis of weak evidence. A growing body of research has shown that sensitivity to omissions can be heightened and that this increased sensitivity results in more appropriate evaluations. Expanding on this, the current research finds that the level of abstraction by which a situation is construed can influence the likelihood of omission detection and the resulting evaluative judgments. A series of studies reveal that people are more likely to spontaneously detect omissions in near vs. distant judgments, in concrete vs. abstract mindsets, and when they are inherently more likely to interpret actions in concrete vs. abstract terms. Further, although prior findings suggest that people may have differential sensitivity to primary and secondary missing features at different levels of construal, the current research finds no such difference. The results of this study indicate that people are more sensitive to all types of missing information when construal levels are low, and that this sensitivity leads to more moderate and appropriate judgments.     

Exploring and Exposing Values in Management Education: Problematizing Final Vocabularies in Order to Enhance Moral Imagination

In business schools, there is a persistent myth according to which management education is, and should be, ‘value-free’. This article reflects on the experiences of two business schools from Finland and Australia in which the UN Principles for Responsible Management Education (PRME) have been pragmatically used as a platform for breaking with this institutionalized guise of positivist value neutrality. This use of PRME makes it possible to create learning environments in which values and value tensions inherent in management education can be explored and exposed. Inspired by Rorty’s understanding of ethics—notably his discussion of ‘final vocabularies’ and ‘moral imagination’—and Flyvbjerg’s reading of phronēsis, the article discusses an approach to learning that helps both teachers and students in exploring and exposing values in management education by problematizing dominant business school vocabularies, thereby leading to moral development, in the Rortian sense. The article presents a number of final vocabularies that business students come to class with, some learning methods used to challenge these vocabularies through discussion of alternative vocabularies, and the new directions for moral imagination that may result.