In general models, the strong quasi-concavity of the objective function, which is sufficient for theoretical properties of demands in consumer theory, is often arbitrary and weaker global concavity conditions are desirable. We propose a new global concavity condition that implies, for models...

We introduce an analytical framework for welfare analysis that accounts for changes in the joint distribution of prices and incomes by using parametric formulae of poverty and inequality measures. We propose statistical indicators for the levels, variabilities and a statistical link of price...

We show under lognormality that when the Gini coefficient is stable over time, defining the poverty line as a fraction of a central tendency of the living standard distribution restricts the evolution of the poverty measures to stability. That is, poverty does not change if the Gini coefficient...

In this paper, we conduct an econometric analysis of the links of on-the-job training (OJT) and worker remuneration in the area of Tunis using a case study data based on eight firms. We pay particular attention to the way the OJT cost may be shared between firms and workers. This is done through...

We study the impact of violent conflict on social capital, as measured by citizen participation in community groups, defined by four activity types: governance, social service, infrastructure development and risk-sharing. Combining household panel data from Indonesia with conflict event...

We introduce a new methodology to target direct transfers against poverty. Our method is based on estimation methods that "focus on the poor". Using data from Tunisia, we estimate 'focused' transfer schemes that highly improve anti-poverty targeting performances. Post-transfer poverty can be...

This paper introduces a new methodology to target direct transfers against poverty. Our method is based on observable correlates and on estimation methods that focus on the poor. Using data from Tunisia, we estimate ÔfocusedÕ transfer schemes that improve anti-poverty targeting performances....