Multilateral Comparison of Cost Structures in the Input–Output Tables of Japan,the US and West Germany

This paper presents a multilateral comparison of relative levels and structures of costs of production in Japan, the US and West Germany. The analysis is carried out by using harmonized input–output tables, which are converted at US prices by using adjusted sectoral purchasing power parities. A new accounting methodology is derived from recent developments of index number theory, whereas the chosen multilateral comparison procedure gives results that are invariant with respect to the order of the pairs of countries examined.     

The Labour Market Effects of Increases in Social Insurance Premium: Evidence from Japan

Exploiting heterogeneous variations in labour cost increases due to Japan's 2003 social insurance premium reform as a natural experiment, we estimate the impacts of the increased social insurance premiums on employment, working hours and payroll costs. Using the difference‐in‐differences method with establishment fixed effects, we find that firms reduce the number of employees and increase average annual earnings from longer working hours in response to an exogenous increase in labour costs without productivity gains. Firms manage to pay for this increase in the average wage paid to the remaining workers by reducing the number of employees to keep total payroll costs unchanged. In contrast, since social insurance premiums are shared equally between employees and employers, firms pay the remaining half premiums that they are imposed with. Sub‐sample analyses show that firms adhering to a labour hoarding policy did fire many workers taking advantage of the 2003 reform. This may indicate that the reform provided a good excuse to cut employment in firms that had been forced to comply with a labour hoarding policy even in an over‐employment situation, which is more likely in sectors and countries where dismissals are rigorously regulated.     

The influence of indoor air on personal exposure to volatile organic compounds and its risk estimation

This paper summarizes the results of personal exposure monitoring and estimates the risk from exposure to 18 volatile organic compounds compared with health criteria set by the US Environmental Protection Agency. In study 1, personal exposure levels and outdoor air concentrations were compared, and in study 2, personal exposure levels and the corresponding indoor air concentrations were compared. From these studies, it was concluded that personal exposure to volatile organic compounds depended markedly on indoor air quality and that handling of compounds increased personal exposure markedly. Risk estimations indicated that chloroform in tap water, benzene from cigarette smoke and p -dichlorobenzene from household insecticide needed caution.     

Policy coordination in East Asia and across the Pacific

In this paper, we construct a macro-econometric model that describes the economic activity in the Asia-Pacific area and provide quantitative insights into the recent policy debates on monetary and currency coordination among the East Asian economies. The model includes a wide variety of monetary and currency policy rules that the East Asian economies adopt and allows for one country's policymaking to have substantial effects on foreign countries. We apply the model to three current policy issues: (1) the desirability of currency basket pegs in East Asia, (2) the anticipated effects of China's currency policy reform, and (3) the non-negativity constraint on Japanese nominal interest rates. The simulation analyses show the external economy effects of policy rules quantitatively and suggest the difficulty of monetary and currency policy coordination among the East Asian economies.

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Wage distribution in Japan, 1989–2003

Abstract. This study examines the recent trend of the Japanese wage distribution based on a micro‐level data set from the Basic Survey on Wage Structure (1989–2003). We perform several decomposition analyses of changes in the distribution of the hourly wage. We observe that lower returns to education and years of tenure contribute to a diminishing income disparity between groups for both sexes. A larger variance within a group contributes to the wage disparity for males, while an increased heterogeneity of workers' attributes contributes to the wage disparity for females. The Dinardo, Fortin, and Lemieux decomposition confirms the basic findings with a parametric variance decomposition.     

Business process semi-automation based on business model management

It is important to respond to customers' requirements more rapidly than ever before due to the recent trend in e-business and its technologies. In order to achieve an agile response, we have to manage business models, to reflect the changes in the models and to develop or modify IT systems for further chances. This paper proposes a management framework of layered enterprise models. The proposed framework consists of a business model repository and a software repository, and defines three different grain sizes of modeling layers, namely business modeling, business process modeling and business application modeling, in order to support business modeling and application development. This framework helps us to develop business application in incremental deployment of analysis, design, and implementation to execute business processes. We have implemented a prototype environment using Java. Each repository's contents are described using XML so that the repositories are interoperable. Copyright © 2003 John Wiley & Sons, Ltd.     

ANALYSIS OF AN OPTION MARKET DYNAMICS BASED ON A HETEROGENEOUS AGENT MODEL

We propose a two‐market model in which an option market and its underlying market interact. Many artificial markets representing stock markets have been developed, and these models have been actively used to investigate the effects of market rules. However, no artificial market model for derivatives has been intensively studied, even though derivative markets are increasingly important. We tested stylized facts that can be observed in an option market and our model can replicate fat‐tailed distributions, positive skew of the return and positive autocorrelation of the square of return of implied volatility. We found that the speed of volatility mean reversion for fundamentalists and the existence of chartists are important factors for replicating the positive skew of an option market. The value of fat‐tailed distributions and positive skewness of the return get closer to the real value by coupling an option market and an underlying market. Copyright © 2014 John Wiley & Sons, Ltd.     

Why the earnings of the middle class declined: evidence from Japan

Using rich governmental micro data, we explore the reasons for the decline in earnings of the middle class in Japan. Many developed countries have seen the decrease in middle-class earnings, and Japan, long known for its solid middle class, is no exception. Our analyses revealed that the main reasons for the decline differ between males and females. The decrease in the earnings of middle-class male workers is due to the decrease in general human capital captured by returns to potential experience years. In contrast, the decrease in the earnings of middle-class female workers is mainly due to the increase in the supply of part-time workers. Furthermore, the firm-specific human capital captured by the return to tenure has increased only among high-wage male workers. This implies that Japanese firms invest in a selected few able workers, regardless of age, because they have been changing human resource strategy in response to economic globalization and changes in technology and the management environment.     

Hybrid Surveys: A Method for the Effective Use of Open-Ended Questions in Quantitative Food Choice Surveys

Surveys are based on predetermined questions (PDQs), used in hypothesis testing. To validate surveys, an open-ended question (OEQs), probing for additional factors, is sometimes added. This approach could become more efficient by combining PDQs with OEQs in hybrid surveys. This study surveyed Japanese consumers on seafood quality (n?=?200). It started with three OEQs, asking participants to list the most important factors when evaluating packed mackerel fillets, before they assessed 26 PDQs on importance of different quality dimensions for the same products. The OEQs were grouped based on the PDQs and the answers were counted. The PDQs were rated on 7-point importance scales. The real-life relevance of PDQs was challenged based on the frequency counts of OEQs. The result revealed that the color, overall freshness, and price issues are the most important factors consumers consider in real life. The use of hybrid surveys led to increased validity of this study.     

The economics of on-farm processing: model development and an empirical analysis

Recent trends in the developments of the Common Agricultural Policy suggest an increasing attention towards rural development issues. On-farm processing may offer an alternative for diversification, income generation and rural development in the event of increasingly deregulated agricultural markets. In this study, the economics of on-farm processing for the case of the Swedish potato industry is examined. An interregional partial equilibrium model is developed. Various stages of the potato marketing chain are explicitly modelled. It is empirically demonstrated that, in some regions, on-farm processing is a part of a socially optimal industry structure. Furthermore, it is shown that on-farm processors are more robust towards import competition than bulk product producers. Hence, the results support the notion that small scale processing may contribute towards satisfying some of the objectives of an effective rural development agenda.