This paper presents a theoretical framework to model the evolution of a portfolio whose weights vary over time. Such a portfolio is called a dynamic portfolio. In a first step, considering a given investment policy, we define the set of the investable portfolios. Then, considering portfolio...

Using the urban household survey data collected by the National Bureau of Statistics of China from 1988 to 2009, this study examines the distribution, composition, and changes in capital income and its contribution to income inequality. The data shows that capital income has increased...

We quantify firm heterogeneity in skill returns and present direct evidence of worker–firm complementarities. Within a model of firms' demand for cognitive and noncognitive attributes we show that identification depends on the availability of skill measures. Linking administrative data to test...

Joan Robinson first suggested that the labor supply curve for a firm may be upward sloping with a finite wage elasticity. Recently, a rapidly growing volume of microeconomics studies have found empirical support for Robinson's suggestion. In this paper it is shown that if a firm's wage...

Atkinson, Piketty, and Saez (2011) survey an important new literature using income taxbased data to measure the share of income held by top income groups. But changes in tax legislation that expand the tax base to include income sources (e.g. capital gains, dividends, etc.) disproportionately...