Let [xi]t:d--s{0,2} be such that all coordinates are independent and, in each coordinate, 2 changes to 0 at rate [beta] and 0 changes to 2 at rate 1. A family of particles (1's) move in the space occupied by 0's like Richardson model, i.e., a 0 becomes 1 at a rate proportional to 1-occupied...

We develop gatekeeping procedures that focus on comparing multiple treatments with a control when there are multiple endpoints. Our procedures utilize estimated correlations among individual test statistics without parametric assumptions. We make comparisons with other gatekeeping procedures...

For a d-dimensional multi-state competition model we identify a critical dimension dc such that the coexistence of the states can occur with a positive probability if and only if d>dc. We will also give a description of the limiting distributions of the model.

During the last decade, cotton production and area have been declining as a result of depleting soil nutrients and low cotton prices in the cotton zone of Mali. This paper shows that the Malian government’s 2011 policy to increase the farm gate cotton price as a response to world cotton price...

This study examines the systematic risk present in major crops for the United States and three corn-belt states. An index of commodities is used in conjunction with cash receipts to generate dynamic estimates of the systematic risk for each crop and state. In our study, we find that beta...

The problem of choice among risk-management strategies is addressed with the stochastic dominance with a risk-free asset (SDRA) criteria. The SDRA criteria consider all possible combinations of the strategies and financial leverage. This allows for strategies with less business risk, less...

This study develops and demonstrates procedures for modeling the impact of agricultural technology adoption decisions on consumption and nutrition in a subsistence-farming context. The method is based on expected direct utility maximization (EDUM) formulation and incorporates subsistence...

Futures markets provide an important outlet for commercial traders to hedge their price risk; in turn, hedgers‟ connections to the physical market provide a foundation of market fundamentals to the futures markets. Participation by hedgers in the futures markets is important for both entities,...