We examine a model of the size distribution and growth of firms whereby firms learn about idiosyncratic productivity parameters. Aggregate shocks, by adding noise to learning at the firm level, can produce differentiated response across firms with their reactions depending on the position of the...

Previous research indicates that the differences between large and small firms should be more pronounced during economic down turns. However, although many studies have emphasized equilibrium models with heterogeneous firms and financial frictions, little research has focused on the separate...

We study the effects of on-the-job skill accumulation on average hours worked by age and the volatility of hours over the life cycle in a calibrated general equilibrium model. Two forms of skill accumulation are considered: learning by doing and on-the-job training. In our economy with learning...

Ambiguity and learning about the equity premium can simultaneously explain the low fraction of financial wealth allocated to stocks over the life cycle and the stock market participation puzzle. Individuals are ambiguous about the size of the equity premium and are averse to this ambiguity,...

Data reveal that individuals experience a high number of occupational switches. Over 40% of high school graduates transition between white and blue collar occupations more than once between the ages of 18 and 28. This paper develops a life cycle model of occupational choices based on workers...