The labor market in developing countries is remarkably heterogeneous with a small productive formal sector, enjoying high wages and attractive employment conditions and another large informal sector with low productivity and volatile wages. The informal sector is particularly diverse. In this...

Among the most popular techniques for portfolio insurance strategies that are used nowadays, the so-called \Constant Proportion Portfolio In- surance" (CPPI) allocation simply consists in reallocating the risky part of a portfolio according to the market conditions. This general method crucially...

In this paper, we propose a general method for testing inequality restrictions on nonparametric functions. Our framework includes many nonparametric testing problems in a unied framework, with a number of possible applications in auction models, game theoretic models, wage inequality, and...

Chinese households have experienced significant income growth, while their nutrition intake has not increased pari passu. This paper uses household data in both rural and urban China over the period 1989-2009 to explain the paradox of higher income but lower nutrition. In addition to traditional...

Motivated by weak small-sample performance of the censored regression quantile estimator proposed by Powell (1986a), two- and three-step estimation methods were introduced for estimation of the censored regression model under conditional quantile restriction. While those stepwise estimators have...

In this paper, we propose a general method for testing inequality restrictions on nonparametric functions. Our framework includes many nonparametric testing problems in a unified framework, with a number of possible applications in auction models, game theoretic models, wage inequality, and...