We propose a microeconomic foundation of the multiplier effect and that of the consumption function using a dynamic optimization model that explains a shortage of aggregate demand and unemployment. We show that government purchases boost aggregate demand through a multiplier-like process but...

We consider three objects of people's status preference, consumption, physical capital holding and money holding, and show that an economy grows or stagnates depending on which object people most seriously take as status. If the main object of status preference is consumption, a steady state...

We present a dynamic and monetary model that consistently explains such various phenomena as unemployment, deflation, zero nominal interest rates and excess reserves held by commercial banks. These phenomena are commonly observed during the Great Depression in the United States, the recent...

We develop a Keynesian cross analysis with a dynamic optimization setting that explains long-run stagnation caused by aggregate demand deficiency. We show that an increase in government purchases boosts GDP through a multiplier process, but the implication is quite different from the...

Previous studies have argued that output growth in advanced economies declined during the Great Recession and remained low afterward. This paper proposes a model to explain this slowdown in output growth. We incorporate wealth preferences and downward nominal wage rigidity into a standard...

Global warming is a serious and acute threat to our planet, but, when negotiating the allocation of permissible carbon emissions, conflicts of interest exist between developed and developing countries. Developing countries insist that global warming is the result of prolonged pollution emissions...

What are the consequences of the preference for wealth for the accumulation of capital and for the dynamics of wealth inequality? Assuming that wealth per se is a luxury good, inequality tends to rise whenever the interest rate is larger than the economic growth rate. This induces the economy to...

Global warming is a serious and acute threat to our planet, but, when negotiating the allocation of permissible carbon emissions, conflicts of interest exist between developed and developing countries. Developing countries insist that global warming is the result of prolonged pollution emissions...

What are the consequences of the preference for wealth for the accumulation of capital and for the dynamics of wealth inequality? Assuming that wealth per se is a luxury good, inequality tends to rise whenever the interest rate is larger than the economic growth rate. This induces the economy to...