Voluntary development of environmental management systems: motivations and regulatory implications

Encouraging firms to develop voluntarily more comprehensive environmental management systems (EMSs) is touted as a policy tool to augment mandatory environmental regulations. Using a unique dataset of environmental management practices of Japanese manufacturers and controlling for self-selection bias in survey responses, we find that proxies for regulatory pressures and consumer pressures are the most important factors that motivate firms toward more comprehensive EMSs. Despite the oft-claimed “voluntary” nature of EMS development, our results show that the government may have a role to play in both directly and indirectly affecting EMS development by firms.      

Accounting for Heterogeneity in Network Formation Behaviour: An Application to Vietnamese SMEs

Network formation is often characterized by homophily, i.e. the tendency of agents to connect with others who have similar attributes. However, while most agents are homophilous, others could be heterophilous; they aim to create ties with dissimilar agents. This study provides empirical evidence supporting this hypothesis by applying a random coefficient approach to data on the information-sharing networks of small- and medium-sized Vietnamese enterprises. In particular, we find that firms tend to form heterophilous links with respect to business type and gender ratio. One possible reason for the heterophily is that firms can obtain useful and performance-improving information from such dissimilar partners.     

Productivity growth in east Asia: a reappraisal

In recent years there has been considerable disagreement over the extent to which productivity growth has accounted for the success of the east Asian economies. Empirical evidence, based on forms of growth accounting or direct estimation of a production function, is inconclusive so that the debate appears to be at a stalemate. This article applies an alternative approach, using the Malmquist productivity indices, to investigate the contribution of productivity to the longer term growth. The results support the view that over the longer term, the east Asian economies were input driven but interesting differences arise between countries when shorter periods are analysed.     

Innovation and Market Structure in the Manufacturing Sector: An Application of Linear Feedback Models*

In recent years, there has been a renewed interest in the relationship between market structure and innovation activities at an industry level. The paper examines the relationship between these for the manufacturing sector in a sample of 33 countries. It applies a recently developed method, based on linear feedback models, and uses cross‐country time‐series data. Despite the relatively small number of observations, the results indicate that domestic competition, external market share, and research and development have a positive effect on innovation activities. The results also suggest that the introduction of the foreign competition may have an initial positive effect on innovation activities, but over time this becomes dissipated.     

Do Japanese consumers care about sustainable fisheries? Evidence from an auction of ecolabelled seafood

This paper investigates Japanese consumers' willingness to pay for Marine Stewardship Council (MSC) ecolabelled seafood using a sealed bid, second price auction. Participants in an experiment in Tokyo were provided varying degrees of information about the status of world and Japanese fisheries and the MSC program in sequential rounds of bidding on ecolabelled and nonlabelled salmon products. A random‐effects tobit regression shows that there is a statistically significant premium of about 20 per cent for MSC‐ecolabelled salmon over nonlabelled salmon when consumers are provided information on both the status of global fish stocks and the purpose of the MSC program. This premium arises from a combination of an increased willingness to pay for labelled products and a decreased willingness to pay for unlabelled products. However, in the absence of experimenter‐provided information, or when provided information about the purpose of the MSC program alone without concurrent information about the need for the MSC program, there is no statistically significant premium.     

The Regime Switching Portfolios

In this paper we develop a portfolio selection theory under regime switching means and volatilities. We use log mean-variance as the portfolio selection criteria and, as a result, the theory is made substantially easier to implement than other existing theories. Moreover, the estimated regimes are easy to interpret as one of the regimes corresponds to the business cycle turning points. Finally, we conduct an asset allocation simulation and obtain reasonable results by introducing an idea of switching volatility targets.     

Hybrid estimators for small diffusion processes based on reduced data

We deal with the Bayes type estimators and the maximum likelihood type estimators of both drift and volatility parameters for small diffusion processes defined by stochastic differential equations with small perturbations from high frequency data. From the viewpoint of numerical analysis, initial Bayes type estimators for both drift and volatility parameters based on reduced data are required, and adaptive maximum likelihood type estimators with the initial Bayes type estimators, which are called hybrid estimators, are proposed. The asymptotic properties of the initial Bayes type estimators based on reduced data are derived and it is shown that the hybrid estimators have asymptotic normality and convergence of moments. Furthermore, a concrete example and simulation results are given.     

Earnings management of initial public offering firms: evidence from regulation changes in China

Discretionary current accruals of Chinese initial public offering (IPO) firms decreased after the abolition of fixed‐price offering systems that directly linked offering price to reported earnings. Results suggest IPO firms that decrease managerial ownership manage earnings upward during the fixed‐price offering period, but this relationship disappeared after the introduction of a book‐building system. We also find that bank debt is negatively related to discretionary current accruals during the fixed‐price offering period, but no relation exists for the book‐building period. Leverage has a significant positive relationship with earnings management. However, this finding is potentially attributable to nonoffering price objectives or endogeneity biases.     

Measuring the Benefits of Neighbourhood Park Amenities: Application and Comparison of Spatial Hedonic Approaches

The hedonic price method was used to estimate the influence of parks on the rental prices of single-room dwellings in Setagaya Ward, Tokyo, Japan. A simple least squares method is not optimal when the data set contains spatial autocorrelation. To improve the accuracy of estimates, we employed spatial autoregression and kriging models, resulting in a higher validity of the spatial models compared to the least squares model. Kriging models were superior to others particularly in terms of prediction accuracy, indicating that these models should be employed if the objective is superior prediction rather than estimation. The results showed that the effect of parks on property values varied with the buffer distance and park size.     

Is corporate governance important for regulated firms’ shareholders?: Evidence from Japanese mergers and acquisitions

This paper compares the reaction of bidders’ stock prices to acquisition announcements by regulated non-financial firms, banks, and unregulated companies in Japan. Results suggest that regulated non-financial firms do not experience a significant stock price response at merger and acquisition (M&A) announcements, although banks’ and unregulated firms’ M&A announcements are regarded favorably by the stock market. Furthermore, the effect of stock option usage and strict boards on the stock price response is weak for regulated non-financial bidders. The results provide additional evidence that regulation results in managerial decisions’ having less influence on shareholder wealth and thereby changes the firm's optimal governance structure. In contrast, the results provide no clear evidence that, for bank bidders, there is a significantly stronger or weaker relationship between governance and the stock price response to an M&A announcement than that of unregulated firms or regulated non-financial firms. The result does not support the view that regulatory monitoring weakens the effect of ordinary governance mechanisms.