Tax changes are often announced before the implementations and are not permanent but only temporary. R&D firms will optimally adjust their investment decision to a tax schedule accordingly. This paper analyzes how anticipated and temporary tax changes dynamically affect the innovation...

To investigate how fertility rates interrelate with the modern economy, we construct a simple model in which variety expansion of consumption goods reduces fertility rates. In our model, variety expansion reduces the relative price of a composite of differentiated goods compared to child-...

To investigate how fertility rates interrelate with the modern economy, we construct a simple model in which variety expansion of consumption goods reduces fertility rates. In our model, variety expansion reduces the relative price of a composite of di?erentiated goods compared to child- rearing...

Previous researches studied how the components of fiscal spending affect the economic growth but did not explicitly enquire into how to adjust the components in order to achieve the highest rate of economic growth starting from the present shares of components. We investigate how to determine...

To investigate how fertility rates interrelate with the modern economy, we construct a simple model in which variety expansion of consumption goods reduces fertility rates. In our model, variety expansion reduces the relative price of a composite of di?erentiated goods compared to child- rearing...

To investigate how fertility rates interrelate with the modern economy, we construct a simple model in which variety expansion of consumption goods reduces fertility rates. In our model, variety expansion reduces the relative price of a composite of differentiated goods compared to child-...

Fossil fuels (oil, coal, gas) are low-entropy natural resources which seem to be indispensable for our economic prosperity. This paper investigates the relationship between fossil fuel consumption and economic growth in Japan, using a multivariate model of fossil fuels, non-fossil energy, labor...