Height data offer insights into the well-being of populations and historical periods for which other indicators are lacking. Researchers modeling historical heights have typically relied on the restrictive assumption of a normal (Gaussian) distribution, only the mean of which is affected by age,...

The nature of the relationship between health and income is still not clearly defined. It is believed that personal income affects health but this may not be the end of the story. Income may also play its part through issues of relativity and deprivation. It may even be possible that these...

This paper considers a financial market where the asset prices and the corresponding volatility are driven by a multidimensional mixture of Wiener shocks and Poisson jumps. While implied volatility is characterized by spikes, the existing models rely on the restrictive assumption of positive...

This paper uses consumer search data to explain search frictions in online markets, within the context of an equilibrium search model. I use a novel dataset of consumer online browsing and purchasing behavior, which tracks all consumer search prior to each transaction. Using observed search...

This paper presents and assesses a procedure to estimate conventional parameters characterizing fluctuations at the business cycle frequency, when the economic agents' information set is superior to the econometrician's one. Specifically, we first generalize the conditions under which the...

This paper analyzes the relationship between households' wealth and heterogeneous treatment impacts for a market-based training program that has benefited more than 40,000 disadvantaged individuals in Peru since 1996. We proxy long-run wealth by a linear index based on 21 households assets, and...

This paper makes a new attack on the old problem of measuring horizontal inequity (HI). A local measure of HI is proposed, and aggregated into a global index. Whilst other approaches have captured the welfare gain which would come from eliminating HI revenue-neutrally, our global index provides...

We derive the asymptotic sampling distribution of various estimators frequently used to order distributions in terms of poverty, welfare and inequality. This includes estimators of most of the poverty indices currently in use, as well as estimators of the curves used to infer stochastic...

In this paper we analyze the impact of benefits on the length of welfare spells. It introduces a ``natural experiment'' approach of comparing the length of welfare spells before and after a major reform of the welfare program that took place in the Province of Québec in August 1989. An...

Desde a criação do Serviço Nacional de Saúde, a promoção da equidade no acesso aos cuidados médicos tem sido parte integrante dos objectivos da política de saúde. O objectivo do presente artigo é o de avaliar a existência ou não de equidade na utilização de cuidados médicos....