In a world where fish are being hunted by massive ships and new technology, it is more important than ever for people to eat more sustainably. The need for sustainable fishing is rather large, because we are slowly killing off all the edible fish in the ocean. In fact, scientists predict that by...

With two thirds of the earth's surface covered by water and the human body consisting of 75 percent of it, water is one of the prime elements responsible for life on earth. All plants and animals must have water to survive. If there was no water there would be no life on earth. Water is also...

We propose a new nonlinear time series model of expected returns based on the dynamics of the cross-sectional rank of realized returns. We model the joint dynamics of a sharp jump in the cross-sectional rank and the asset return by analyzing (1) the marginal probability distribution of a jump in...

"This paper addresses the question of whether Africa is an undertrading continent. We answer this question using a much-improved data set for obtaining predicted trade and by employing methods that correct for bias in estimates of undertrading. Our results indicate that globally Africa is an...

In this article we define a class of estimators for a nonparametric regression model with the aim of reducing bias. The estimators in the class are obtained via a simple two-stage procedure. In the first stage, a potentially misspecified parametric model is estimated and in the second stage the...