Cosmological inflation is widely considered an integral and empirically successful component of contemporary cosmology. It was originally motivated (and usually still is) by its solution of certain so-called fine-tuning problems of the hot big bang model, particularly what are known as the horizon problem and the flatness problem. Although the physics behind these problems is clear enough, the ...

Micro data shows a significant dispersion in wealth at retirement at all levels of lifetime earnings and a weak correlation between lifetime earnings and retirement wealth. Previous research has shown that standard models have trouble generating these important features of the data. This paper studies a quantitative general equilibrium lifecycle model with intergenerational links of voluntary a...

I consider a model where a principal decides whether to produce one unit of an indivisible good (e.g. a private school) and which characteristics (emphasis on language or science) it will contain. Agents (parents) are differentiated along two dimensions: a vertical parameter that captures their privately known valuation for the good (demand for private education), and an horizontal parameter th...