Sensitivity analysis of efficiency rankings to distributional assumptions: applications to Japanese water utilities

This article examines the robustness of efficiency score rankings across four distributional assumptions for trans-log stochastic production-frontier models, using data from 1221 Japanese water utilities (for 2004 and 2005). One-sided error terms considered include the half-normal, truncated normal, exponential and gamma distributions. Results are compared for homoscedastic and doubly heteroscedastic models, where we also introduce a doubly heteroscedastic variable mean model, and examine the sensitivity of the nested models to a stronger heteroscedasticity correction for the one-sided error component. The results support three conclusions regarding the sensitivity of efficiency rankings to distributional assumptions. When four standard distributional assumptions are applied to a homoscedastic stochastic frontier model, the efficiency rankings are quite consistent. When those assumptions are applied to a doubly heteroscedastic stochastic frontier model, the efficiency rankings are consistent when proper and sufficient arguments for the variance functions are included in the model. When a more general model, like a variable mean model is estimated, efficiency rankings are quite sensitive to heteroscedasticity correction schemes.     

Exchange rate movements and foreign direct investment (FDI): Japanese investment in Asia, 1987–2008

The paper estimates the impact of exchange rate movements on foreign direct investment (FDI). By using the panel data of Japanese FDI flows to nine dynamic Asian economies during 1987–2008, the paper finds that (i) FDI declined with a depreciation of the yen against host country currencies; (ii) it increased with exchange rate volatility; and (iii) it was little affected by the Asian financial crisis, especially when disguised financial flows were removed from the data. A novel result concerns the negative response of FDI to the third moment of monthly exchange rate changes: the volume of FDI was smaller when the distribution was positively skewed (i.e., when the yen was biased towards relatively large depreciation shocks). If skewness proxies for expected mean-reverting changes, this supports the idea that source country investors care about the future stream of revenues and returns denominated in their own currency. These results are robust, with other standard control variables having statistically significant coefficients with expected signs.     

Augmented serial rules for an excludable public good

Summary. We present a new class of rules named augmented serial rules for the provision of an excludable public good. First, we characterize this class by the four axioms of strategy-proofness, envy-freeness, access independence, and nonbossiness. Second, we identify two important subclasses by imposing an additional axiom: (i) anonymous augmented serial rules by anonymity, and (ii) Moulins serial rule by individual rationality.Received: 31 December 2002, Revised: 9 June 2004, JEL Classification Numbers: D71, D82, H41.This paper is a substantial revision of Serial cost sharing with simple games. I would like to thank Hervé Moulin, Yoshikatsu Tatamitani, an associate editor, and three anonymous referees for helpful suggestions and detailed comments. This research was partially supported by the Ministry of Education, Culture, Sports, Science, and Technology in Japan (Grant-in-Aid for 21st Century COE Program Microstructure and Mechanism Design in Financial Markets).     

Extending the Learning-By-Exporting Hypothesis: Introducing a Credit Constraint

This paper develops a theoretical framework which can be used to examine policy implications from the learning-by-exporting hypothesis. This work builds on previous theoretical literature by introducing a credit constraint. When credit is available, the analysis suggests that supporting a learning sector via an export subsidy is not necessarily advised to improve social welfare. The learning sector’s goods may be over-produced (relative to another non-tradable sector goods) when consumers can borrow freely for their consumption. If the learning sector’s goods are over-produced, social welfare will be improved via a tax on production.

东北跨境民族的形成及文化传承发展研究的意义

中国东北有六个少数民族跨境而居.从民族形成的角度看,朝鲜族、 俄罗斯族是因为迁徙而形成的跨境民族;蒙古族、 赫哲族、 鄂伦春族和鄂温克族则是因为国家重新划界所造成的跨境民族.在政治和社会形态,以及文化生活方面已经因为所属国家的不同而有了鲜明的差异,但是在文化传统上、 在民族习俗上,以及文化发展传承上,这些跨境而居的民族却有着不可分割的血缘联系和相同的文化DNA.因此,探究和创新跨境民族文化传承具有特定的意义,同时对于全面建设小康社会,建设和平稳定、 与中国合作的周边环境,也是具有重要的借鉴意义.     

Attributive change in top management teams as a driver of strategic change

This study examines the role of top management team (TMT) member succession in breaking organizational inertia. We compare the impact of two types of change in TMTs—in member number and demographic heterogeneity—on subsequent strategic reorientation using data on the diversification activities of firms in the Japanese textile industry. Our findings suggest that executive succession does not trigger strategic change unless succession entails change in the values and interests of executives embedded in their demographic traits.

Resolvable semi-balanced incomplete split-block designs

A method for constructing some new incomplete split-block designs with desirable properties is given. The new class of the designs is characterized with respect to the general balance property. Moreover, the efficiency factors of the designs proposed are given.Received: July 2003 / Revised: November 2003     

Making implicit CSR explicit? Considering the continuity of Japanese “micro moral unity”

While there are many studies that address how well Japanese companies have adopted explicit CSR practices, our understanding of their own views on such practices is still limited, particularly of the difference in their views before and after the process of making implicit CSR explicit. The present research thus aims to address this apparent change by providing comparative case studies of two Japanese companies selected from two different time periods. The findings indicate there is a continuity observable in the mindset of these companies not a change. This contradicts existing literature and suggests that the process of making CSR explicit has not been accompanied by any real change in their mindset. The result shows that ethically questionable practices have been going on behind the explicitly articulated CSR policies and implies the difficulties of delegating the power to address societal issues to business organisations. This is important particularly now when the expectations of the public regarding the responsibilities of business towards society are on the rise.     

Disposition Effect and Diminishing Sensitivity: An Analysis Based on a Simulated Experimental Stock Market

The authors experimentally investigate the existence of the disposition effect and its relationship with diminishing sensitivity. Their approach includes 3 key characteristics: (i) an environment closely resembling actual stock markets, (ii) individual-specific reference prices, and (iii) a direct test of diminishing sensitivity as a correlate of the disposition effect. They find strong support for the existence of the disposition effect as an independent hypothesis. This is an improvement over previous studies, which tested this hypothesis only jointly with others. The authors' results also strongly point to diminishing sensitivity, of the type postulated by prospect theory, being positively associated with the disposition effect.