2014-08-012024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/658204摘要：此計畫將利用一疊代模型來分析政府藉著課徵所得稅，用來提供教育補助或生育津貼對經濟成長的影響。此計畫將分成兩個子計畫來執行。第二個子計畫將分析生育津貼是否有可能會導致混沌動態的產生。在此子計畫中，我假設生育津貼會對生育率有一正向影響；此外，生育津貼會對生育率的邊際影響具有門檻效應。生育津貼的提供會對每單位勞工的平均實體資本量累積造成兩個負面的影響。第一，生育津貼的提供會造成稅率的上升，而稅後所得的減少會使家計單位的儲蓄減少；第二，生育率的上升會造成人口的增加，因此未來的每單位勞工的平均資本量會下降。當生育津貼會對生育率具有強烈影響時，第二個效果的負向影響會更強。因此， 生育津貼的額度和對生育率的影響力是經濟體系的動態行為和均衡的穩定性的重要決定因素。<br> Abstract: This project studies the effects of government policies of educational subsidies and child allowances on economic growth based on an overlapping-generations model where both policies are financed by the income tax. This project is divided into two sub-projects. The second sub-project examines the occurrence of chaotic dynamics induced by child allowances. Fertility is assumed to be an increasing function of child allowances and there may exist a threshold effect of the marginal effect of child allowances on fertility. The provision of child allowances will cause two negative effects on the accumulation of capital per worker. First, the tax rate reduces the after-tax income for adults and this will reduce savings and capital accumulation. Second, fertility is raised by the provision of child allowances and this will in turn raise population growth rate and reduce capital per worker in the future. The second effect is reinforced if child allowances have strong effects on fertility. Therefore, the amount and the effectiveness of child allowances are two important determinants to the monotonicity of the dynamics of the economy and the stability property of the non-trivial steady state.生育率動態行為生育津貼教育補助。Fertilitydynamic propertychild allowanceseducational subsidies.