A debate has been raging for centuries regarding the effects of inter-annual storage on commodity prices. Most analysts consider storage to function as a price stabilizer, while others place it at the core of an explanation of intriguing features of commodity price series, such as skewed...

Recent developments in world food markets stress the importance of identifying the sources of food price volatility. This paper develops a nonlinear Cobweb model with endogenous volatility which accounts for several characteristics of agricultural commodity markets (seasonality, storage) and...

This paper shows that there has been a significant decline in the employment and labor force participation of persons with disabilities in South Africa over the 1998 through 2006 period. Disability is defined based on activity limitations. Data are from the October and the General Household...

South Africa's Disability Grant program has been widely criticized for its poor administration and the dependency culture it promotes. This paper attempts to assess the Disability Grant program's targeting effectiveness and its effects on labor market behaviors. Using disability self reports and...

This paper examines differences in employment rates between persons with and without disabilities in 15 developing countries using the World Health Survey. We find that people with disabilities have lower employment rates than persons without disabilities in nine countries. Across countries,...

This paper develops a measure of the joint distribution of multiple deprivations in the United States, in other words a measure of the extent to which different deprivations are experienced by the same individuals. Using Current Population Survey and American Community Survey data, we find that...

This paper examines whether disability is a correlate of poverty when poverty is measured using (1) the official poverty measure; (2) the supplemental poverty measure (SPM); and (3) two newly created multidimensional poverty measures. Methods: Data from the Current Population Survey is used to...

Background: A number of social programs are targeted at persons with psychiatric diagnosis with the intention of reducing poverty. Previous studies have shown that persons with psychiatric conditions are more likely to be poor and face disparities in education and employment outcomes. A better...

This paper examines differences in employment rates between persons with and without disabilities in 15 developing countries using the World Health Survey. We find that people with disabilities have lower employment rates than persons without disabilities in nine countries. Across countries,...

Objectives: We estimated disability prevalence among adults at global, regional and country levels using internationally comparable disability data and measure. Methods: We conducted a retrospective analysis of data from the World Health Survey (WHS) (2002--2004) for nationally representative...