This paper examines the role played by biodiversity goals in the design of agricultural policies. A bio-economic model is developed with a dynamic and multi-scale perspective. It couples biodiversity dynamics, farming land-uses selected at the micro level and public policies at the macro level...

The problem of fair pricing of contingent claims is well understood in the contex of an arbitrage free, complete financial market, with perfect information : the so-called arbitrage approach permits to construct a unique valuation operator compatible with observed price rocesses. In the more...

In this article, we will follow the involvement that the government has, through its expenses, on the consumption behavior. The involvement that the government has in the consumption behavior is made through fees and taxes that are applied on income. Fees and taxes are applied to the different...

Bid-prices are becoming an increasingly popular method for controlling the sale of inventory in revenue management applications. In this form of control, threshold---or "bid"---prices are set for the resources or units of inventory (seats on flight legs, hotel rooms on specific dates, etc.) and...

We study the effects of energy saving technological progress and substitution of renewable energy resources with non-renewable resources on natural resource depletion and long run growth. We develop a growth model in two-period overlapping generations framework incorporating the presence of both...

Given a matrix p ≥ 0 what does it mean to say that a matrix f (of the same dimension), whose row and column sums must fall between specific limits, is "proportional to" p? This paper gives an axiomatic solution to this question in two distinct contexts. First, for any real "allocation" matrix...

Here we present an expository, general analysis of valid post-selection or post-regularization inference about a low-dimensional target parameter in the presence of a very high-dimensional nuisance parameter which is estimated using selection or regularization methods. Our analysis provides a...