Externalities exist when companies perform sales activities (e.g., advertising and sales promotions). However, welfare analysis of policy effectiveness, such as taxation/regulation on sales activities, has not been sufficiently conducted. Existing studies have mainly focused on specifying the...

We examine the effects of environmental policies such as a subsidy for reforestation and an export-income tax in a small open economy with a re- newable resource. In the small economy, the harvested renewable resources are exported to acquire foreign assets and consumers can invest in the...

This paper examines the design of a tax policy applied to the consumption of durable goods and labor income. We consider cases wherein the government cannot commit to a tax policy in the second period. If the type of taxpayers is unrevealed, it is optimal to tax the durable goods consumption of...

In this study, we reconsider the optimal non-linear tax problem with the public goods from the perspective of the commitment issue and examine how it affects the condition of the public goods provision. We show that the Samuelson rule should be modified when the government cannot commit and the...

This paper analyzes the political economy of public education and lump-sum transfer in an overlapping-generation model of a two-class society in which the dy- namics of inequality is driven by the accumulation of human capital. The two redistributive policies are determined by voting, while...

We construct an endogenous growth model with productive public capital and government debts where government debts are gradually adjusted to target level. We examine how debt-reductions of the government affect the transitional dynamics and welfare of the economy. Fiscal consolidation has...

This paper investigates the individual outcomes of irrational thinking, including paranormality and non-scientific thinking. These modes of thinking are identified by factor analysis from a 2008 survey. Income and happiness are used as measures of performance. Empirical results reveal that both...

This paper investigates the transitional dynamics of a basic Schumpeterian growth model under constant relative risk aversion. In this model, there are three patterns of the evolution of wage inequality: (a) skill-biased technological change, i.e., technological progress leads to a widening of...

In this paper, we introduce into a Schumpeterian growth model an inventive step: a minimum innovation size required for patents, which is a patentability requirement. We show that each R&D firm targets only the industries that the incumbentfs technology is sufficiently obsolete in order to...

In this paper we analyze the relation between the preferred prefecture to live and their regional characteristics in Japan using the data of questionnaire survey conducted by GCOE program of Osaka University in 2009 and 2010. We found: 1) Most people are satisfied with the current residential...