Price distortion induced by a flawed stock market index

Despite the introduction of sophisticated stock market indices, investors often trade portfolios of the flawed indices to change their exposure to the market. In this study, we show that these transactions cause significant mispricing in individual stocks, especially during periods of significant market movement. As an influential, albeit flawed, stock index, we focus on the Nikkei 225. We find index constituents that are excessively weighted on the index, experience buying (selling) pressure when the stock market surges (falls), and experience price corrections after such periods of change. In contrast, non-constituent stocks do not experience such trading pressure.     

Structural Decomposition Analysis of Japan’s Energy Transitions and Related CO2 Emissions in 2005–2015 Using a Hybrid Input-Output Table

Environmental and Resource Economics - This study investigates Japan’s energy transitions in 2005–2015, which involved massive economic disruptions due to the 2011 Great East Japan...     

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.     

Why do reputable agents work for safer firms?

Safer firms receive funding from reputable venture capitalists and offer new securities underwritten by reputable investment banks. We offer a new explanation for these facts employing a moral-hazard model in which a firm and an agent are matched endogenously. More reputable agent's effort has a greater impact on output. Safer firm's output reflects the agent's hidden effort more accurately and therefore the agent's pay scheme tied with the output powerfully motivates her to exert effort. In equilibrium, a safer firm should be matched with a reputable agent since this combination allows to maximize effort of the reputable agent.     

Fundamentals of a new economic paradigm in the information age

Mechatronic technology is becoming dominant, and the capitalist market economy is becoming replaced by an economic framework of self-management and information sharing. As services and information become major traded goods at the global level, new economic structures based on globally networking eco-share regions are emerging. This article posits the development of a ‘MuRatopian’ economy—the new social design of the information age. Five actors-prosumer, co-worker, self-financer, inhabitant and villager—are replacing the nation-state in eco-share regions, with full employment, fair income distribution, economic efficiency and incentive, freedom and participatory democracy, all facets of a superior global economy of the information age.     

A multistage method to measure efficiency and its application to Japanese banking industry

When measuring technical efficiency with existing data envelopment analysis (DEA) techniques, mean efficiency scores generally exhibit volatile patterns over time. This appears to be at odds with the general perception of learning-by-doing management, due to Arrow [The economic implications of learning by doing. Review of Economic Studies 1964; 154–73]. Further, this phenomenon is largely attributable to the fundamental assumption of deterministic data maintained in DEA models, and to the difficulty such models have in incorporating environmental influences. This paper proposes a three-stage method to measure DEA efficiency while controlling for the impacts of both statistical noise and environmental factors. Using panel data on Japanese banking over the period 1997–2001, we demonstrate that the proposed approach greatly mitigates these weaknesses of DEA models. We find a stable upward trend in mean measured efficiency, indicating that, on average, the bankers were learning over the sample period. Therefore, we conclude that this new method is a significant improvement relative to those DEA models currently used by researchers, corporate management, and industrial regulatory bodies to evaluate performance of their respective interests.     

The impacts of export competition on international technology flows

Knowledge flow is a key to building technological capabilities. This article investigates how competition in international trade affects knowledge flow between countries using patent data and trade data for analysis. The main finding is that export competition in the third market (in our study, the US market) seems to have a positive impact on the flow of knowledge. The findings from this study contribute to the debate on ‘learning-by-exporting’.     

On the cost-reducing effects of embodied technical progress: a panel study of the steel industry in Japan

To explicitly explain the cost-reducing effects of technical progress experienced by each firm, we assume that technical progress, namely, the prevalence of particular equipment, can be expressed by a function of logarithmic physical capital. Regarding the technology cost structure, we propose a modified dynamic cost function model that consists of the above equation, the translog variable cost equation containing technical progress as one of the factors, and Euler equations with respect to physical and research and development capital stocks. Using data on eight firms in the Japanese electric-furnace steel industry for the period 1970–1998, the model was empirically validated using the generalized method of moments. An elasticity of production cost with respect to technical progress showed a cost-reducing effect. This fact was influenced by the type of product and the extent of each firm’s R&D. Also derived from this model is one reasonable phenomenon of business-cyclically changing the use of endogenous capacity. This economic information supports the appropriateness of the above model, including the assumption of transforming technical progress into an endogenous variable, and the methods of analysis.