Comparing marginal commodity tax reforms in Japan and Korea

We examine the impact of the marginal commodity tax reforms in Japan and Korea, using data from the official household surveys of the two countries. Based on the estimations of two demand systems (linear expenditure system (LES) and almost ideal demand system(AIDS)), we compare the marginal costs of taxing major commodity groups, examine distributive gains from tax reforms based on concentration curves, and assess the impact on poverty based on consumption dominance curves. In particular, we find that revenue-neutral marginal tax reforms incorporating a reduced tax on food and beverages are more likely to face an efficiency–equity trade-off in Korea than in Japan.     

Unequal Exchange and Exploitation

Marx insists that the richer country exploits the poorer one through an unequal exchange of labour quantities. Elsewhere I have confirmed that the unequal exchange of labour quantities is possible, but I failed to consider carefully whether this implies an unequal exchange of values, i.e. international exploitation. This paper argues that Marx is wrong to insist on it, in that he does not consider properly the comparison of values differently dated, and points out that a similar failure can be found in the theory of Bauer and Grossmann. Finally, I state my own theory, which is free from the difficulties found in Marxian theories.
JEL Classification Numbers: B1, F0.     

Indescribability and its irrelevance for contractual incompleteness

The incomplete contracts literature often cites indescribable contingencies as a major obstacle to the creation of complete contracts. Using agents’ minimum foresight concerning possible future payoffs, Maskin and Tirole (Rev Econ Stud 66:83–114, 1999) show that indescribability does not matter for contractual incompleteness as long as there is symmetric information at both the contracting stage and the trading stage. This is called the irrelevance theorem. The following generalization of the irrelevance theorem is shown here: indescribability does not matter even in the presence of asymmetric information at the trading stage, as long as there is symmetric information at the contracting stage. This is an important clarification because Kunimoto (Econ Lett 99:367–370, 2008) shows that indescribability can matter if there is asymmetric information at both stages. It is thus argued that asymmetric information at the contracting stage is necessary for indescribability to be important in the rational agents contracting model.     

Factors Influencing Corporate Environmental Protection Activities for Greenhouse Gas Emission Reductions: The Relationship Between Environmental and Financial Performance

This paper analyzes the relationship between a firm??s greenhouse gas (GHG) emissions and its profitability in Japanese manufacturing. Defining the difference between the marginal revenue and cost of reducing GHG emissions as the ??net benefit,?? which is endogenously characterized by various factors, we estimate a switching regression model where the sign of the net benefit determines the relationship between GHG emissions and profitability. Our empirical analysis focuses on ISO 14001 adoption, market competition, uncertainty, financial flexibility, and share ownership structure as the factors, and indicates that firms with low firm-specific uncertainty, high financial flexibility, and a high proportion of large shareholders tend to have a nonnegative net benefit, so that the positive relationship between their GHG emissions and profitability is mitigated. On the other hand, although ISO 14001 adoption is generally considered to be an indicator of a firm??s stance on environmental proactiveness, it does not provide a sufficient incentive to reduce emissions. Factors such as uncertainty, financial flexibility, and share ownership structure are more important to GHG emission reductions.     

POST‐KEYNESIAN EFFECTIVE DEMAND AND CAPITAL–LABOUR SUBSTITUTION

This paper analyses the relationship between the real wage rate and employment when we induce capital–labour substitution within a Post‐Keynesian Kaleckian model. To avoid the over‐determinacy problem, we consider a non‐homogeneous production function and cost minimization, in contrast to recent work that assumed a homogeneous production function and profit maximization. As a result, we find not only that increasing returns to scale are important in sustaining the long‐run stability condition, but also that if the increasing returns to scale are small, then it is more likely that employment will increase.     

Monotonicity and continuity of the critical capital stock in the Dechert–Nishimura model

We show that the critical capital stock of the Dechert and Nishimura (1983) model is a decreasing and continuous function of the discount factor. We also show that the critical capital stock merges with a nonzero steady state as the discount factor decreases to a certain boundary value, and that the critical capital stock converges to the minimum sustainable capital stock as the discount factor increases to another boundary value.     

Firm level return-volatility analysis using dynamic panels

This paper examines “leverage” and volatility feedback effects at the firm level by considering both market and firm level effects, using 242 individual firm stock data in the US market. We adopt a panel vector autoregressive framework which allows us to control simultaneously for common business cycle effects, unobserved cross correlation effects in return and volatility via industry effects, and heterogeneity across firms. Our results suggest that volatility feedback effects at the firm level are present due to both market and firm effects, though the market volatility feedback effect is stronger than the corresponding firm level effect. We also find that the leverage effect at the firm level is persistent, significant and negative, while the effect of market return on firm volatility is persistent, significant and positive. The presence of these effects is further explored through the responses of the model's variables to market-wide return and volatility shocks.     

Human Capital, Productivity, and Stratification in Rural Pakistan

This paper investigates the effects of human capital on productivity using micro panel data of rural households in the North‐West Frontier Province, Pakistan, where a substantial job stratification is observed in terms of income and education. To clarify the mechanism underlying this stratification, the human capital effects are estimated for wages (individual level) and for self‐employed activities (household level), and for farm and non‐farm sectors. Estimation results show a clear contrast between farm and non‐farm sectors—wages and productivity in non‐farm activities rise with education at an increasing rate, whereas those in agriculture respond only to the primary education.     

The Keisho1 of Development Technology: The Case of the Japanese Aircraft Industry

In many respects, development of highly innovative products such as fighter aircraft comes down to a quest for technological superiority. If such products lack best-in-class technologies, they face almost certain defeat at the hands of the competition (or, in the case of fighter aircraft, the enemy). In addition to the latest and greatest technologies, however, this type of development effort must draw on the past. Takashi Nakayama explores the role that keisho—or inheritance—of development technology plays in the Japanese aircraft industry. He illustrates the concept of keisho through examples ranging from the projects that culminated in development of the famed Zero fighter aircraft during the 1930s to those that produced the FSX (recently renamed the F-2) support fighter during the 1990s. Drawing on these historical perspectives, he addresses three key questions regarding keisho. First, why do Japanese manufacturers insist on keisho of development technology, even in the development of the latest aircraft? Second, what does the term development technology mean? And finally, how is keisho of development technology to be carried out? He then presents two models to show how keisho of development technology is carried out under different circumstances. The term development technology refers to the tacit knowledge that each member of the organization brings to a development effort. In other words, development technology comprises fieldwork knowledge, which consists of intuition, experience, and analogy. In essence, development technology represents the insight necessary for understanding the overall circumstances of a project and actively reframing or integrating various technologies to fit the needs of that project. During a development effort, each member of the organization internalizes this tacit knowledge (that is, development technology). By retaining and assigning these people to subsequent developments, an organization carries out the keisho of development technology. In this straight inheritance (optimal) model of keisho, engineers move from a completed project to another large-scale, next-generation project, continually using, refining, and enhancing the tacit knowledge shared by all members of the organization. The result is successive generations of new, excellent products. In intermediary inheritance (the minimal requisite keisho model), the core of development technology is inherited through various medium-scale intermediate projects, rather than directly from one large-scale project to the next.