The paper takes the Leibnitz Integral Rule (LIR) under variable integration limits and demonstrates how it can be applied to a business firm's dynamic problem of determining its optimum level of investment activity, when the longevity (life span) of the investment is itself a variable determined...

We document that home ownership of households with 'heads' aged 25-44 years fell substantially between 1980 and 2000 and recovered only partially during the 2001-2005 housing boom. The 1980-2000 decline in young home ownership occurred as improvements in mortgage opportunities seemingly made it...

In this paper we address the long-run effects of childhood shocks on health in late adulthood. Applying a life-course approach and data from SHARE we estimate direct and indirect effects of shocks like relocation, dispossession, or hunger on health outcomes after age fifty. Having lived in a...

I show how the influences of unskilled immigration, differential fertility between immigrants and the local indigenous population, and incentives for investment in human capital combine to predict the decline of the West. In particular, indigenous low-skilled workers lose from unskilled...

This article analyzes the negative side of involuntary integration in public education - its effect on whites. The model shows that the flight from the integrated multicultural public schools to private education increases private educational expenditures and decreases fertility among more...

This article analyzes the consequences of integration in public education. I show that the flight from the integrated multicultural public schools to private education increases private educational expenditures and, as a result, decreases fertility among more affluent parents whose children...

This article analyzes the relationship between abortion and female education. It provides new empirical evidence from sub-Saharan Africa to show that more liberal abortion policies are associated with a higher female secondary school enrollment. It is assumed in the model that easier access to...

This article analyzes income redistribution in the inter-ethnic context. The model shows that redistribution in favor of less prosperous ethnic minorities raises fertility among the unskilled minority recipients, lowers fertility among the contributing local skilled, slows human capital...

I examine how one central aspect of the childhood family environment - sibling gender composition - affects women's gender conformity, measured through their choice of occupation and partner. Using Danish administrative data, I causally estimate the effect of having a second-born brother...

A standard approach to estimating structural parameters in life-cycle models imposes sufficient assumptions on the data to identify the "age profile" of outcomes, then chooses model parameters so that the model's age profile matches this empirical age profile. I show that this approach is both...