When individual or household incomes are collected for administrative or scientific surveys, the reference period of income is sometimes a month, sometimes a quarter, and sometimes a year. This reference period of income likely affects the shape of the distribution and derived measures of...

Inequality, bi-polarization and polarization are related but distinct concepts aiming at analysing the income distribution. This paper first recalls the main differences between these three notions of inequality, bipolarization and polarization. It then shows that a close look at the impact of...

Aphorisms that "Rising tides raise all boats" or that material advances of the rich eventually "Trickle Down" to the poor are really maxims regarding the nature of stochastic processes that underlay the income/wellbeing paths of groups of individuals. This paper looks at the implications for the...

The aim of this paper is to provide fresh empirical evidence of the mechanisms through which wage inequality affects worker satisfaction. Theoretically, wages of others may affect workers' utility for two main reasons: Workers may derive well-being from their social status (comparison...

The link between trade and wages is embodied in the Stolper-Samuelson theorem and its generalizations. The Stolper-Samuelson logic is that trade affects relative factor rewards by changing relative prices. Since in Argentina non-skilled labor was neither as abundant a factor as land nor as...

This paper examines three possible approaches to pro-poor growth. The first one assumes that the poverty line remains constant in real terms over time. The second perspective examines the case where the poverty line is equal to half the median of the income distribution but assumes that such a...

The Special Report on Emissions Scenarios (SRES) has been widely used to analyze climate change impacts, vulnerability and adaptation. The storylines behind these scenarios outline alternative development pathways, which have been the base for climate research and other studies at global,...

The distribution of labour productivity is investigated by analyzing the longitudinal micro-level data set which contains detailed financial condition of large numbers of Japanese companies over the period 1996-2006. The generalized beta function of the second kind is applied to explain the...

Engagement in non-agricultural activities in rural areas can be classified into survival-led or opportunity-led. Survival-led diversification would decrease inequality by increasing the incomes of poorer households and thus reduce poverty. By contrast, opportunity-led diversification would...

This paper analyses changes in income portfolios of rural households and its determinants for the case of Ghana in the 1990s. Our analysis shows that, contrary to common beliefs, rural Ghana has seen major economic transformation, as households increasingly diversify their livelihoods by both...