This paper presents a dynamic general equilibrium model with heterogeneous firms and entrepreneur's portfolio choice. We analytically show that this model generates the Pareto distribution of top income earners and Zipf's law of firms at the steady state. The differential equation for the...

In the U.S., the objective of consumer price index (CPI) measurement is to measure the cost of living. However, the current CPI or, in other words, cost of living index (COLI) measures the cost of living in a static optimization problem. This paper proposes a new method to construct a dynamic...

This paper develops a simple accounting framework that measures the effect of resource misallocation on aggregate productivity. This framework is based on a multi-sector general equilibrium model with sector-specific frictions in the form of taxes on sectoral factor inputs. Our framework is...

Using a simple framework, I reexamine the Hayashi and Prescott hypothesis (2006) that a barrier to labor mobility that maintained high agricultural employment was a cause of the stagnation in the prewar Japanese economy. I find that the labor misallocation between the agricultural and...

This paper suggests that the difference in the Theil indices of inequality between two economies approximately measures the relative loss of aggregate productivity caused by distortions in labor allocation. Moreover, the Theil index itself can be interpreted approximately as the possible maximum...

Why did the Japanese economy stagnate before World War II, how did it achieve rapid economic growth after the war, and why did it stagnate again after the 1970s? To answer these questions, I developed a two-country trade model with technology transfer, where rms in the two countries compete in a...