Incorporating heterogeneous life expectancy in gender, this paper analyzes the effect of income redistribution policy among family members on household allocation in a family bargaining model. It is shown that a mandatory income transfer policy from husbands to wives induces a decline in fertility rate and an increase in household savings. We also consider the effects of aging of each gender on household allocations.

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Some preceding works have shown that the extent of tax compliance differs with income class, and that tax compliance is lower in the higher-income class. In this paper, expanding Gordon（1989）, we show a possibility that such a difference in tax compliance among income classes is related to the moral emotion toward tax evasion. In particular, tax compliance can be lower in the higherincome class when the guilt feeling toward tax evasion depends on the proportion of concealed income.

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In this paper, we discuss the development of a small global macroeconometric model involving 5 nations/areas: US, Japan, EU, China and Korea. The model has the typical features of a new Keynesian macroeconomic model, including the effects of both short-term demand shocks and long-term equilibrium conditions or supply-side constraints. The model incorporates an error correction formula to ensure the stability of the long-term conditions and the co-integrated relations. The model features partly forward-looking variables, which imply the model-consistent expectation that the minimum forecasting error is assured. The model also adopts a translog function to estimate the share functions for the bilateral trade relations instead of using the conventional function that more effectively reflects changes in the relative price and the demand between trading partners. Several simulation analyses indicate that the multiplier of the fiscal expansion is 1.4～1.6 if the whole expenditure is regarded as “real water”. US, Japan and EU have a larger impact on China and Korea. The reverse is not true even though China has become the second largest economy; indeed, the effects are quite asymmetrical. On the other hand, China and Korea are tightly unified into one economic region through the supply chain of goods. Appreciation of the RMB will reduce China’s GDP; however, the US will not necessarily gain from it for a long time. Moreover, the welfare of the world economy could slow down overall, and only Japan will substitute to compensate for the reduction in China’s exports. In general, China and Japan are “substitutes” with respect to world trade, whereas China and Korea are “complements”.

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This paper presents construction of a mixed oligopoly model with product differentiation and analyzes the effects of privatization of public firms on the economy under some environmental regulation schemes. Results of our analysis show that the full nationalization of public firm is socially preferred under conditions of no environmental regulation. Partial privatization is socially preferred under both direct and indirect environmental regulations. Moreover, results show that socially preferred privatization depends on the degree of product differentiation under environmental regulations.

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本稿では，企業による有期雇用の利用に影響を与える政策が，労働市場や企業の雇用調整行動に及ぼす効果を理論的に分析する．特に，労働市場における取引摩擦の存在を明示的に取り入れた均衡サーチモデルを用いて，有期雇用契約の期間の上限の引き上げや有期雇用から正規雇用への転換促進を目的とした補助金の支給が，新規雇用の創出，雇用形態間での労働者の転換，及び有期労働者の厚生にどのような影響を及ぼすかを検討する．

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「 全国イノベーション調査」の個票データを利用し，イノベーション会計という手法を適用して，国際展開の事業形態によるイノベーション効率性の差異を定量分析している．分析の結果，イノベーション実現の有無においては国際化は必ずしも重要ではないが，イノベーション成果の大きさを考慮すると，国際化企業は高いイノベーション効率性を実現していることが明らかになった．海外での活動を研究開発まで広げる企業においてこれは最大であった．

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