This paper presents a comprehensive economic framework for the conservation of biological diversity. This framework combines a simple model for valuing different sets of species with a decision theoretic model involving extinction probabilities to identify the optimal conservation strategy....

We employ a nonlinear, nonparametric method to model the stochastic behavior of changes in the 90-day U.S. T-bill rate. The estimation technique is locally weighted regression (LWR), a nearest-neighbor method, and the forecasting criteria are the root mean square error (RMSE) and mean absolute...

We investigate the interplay between government credibility and the visibility of policy-making, using the choice of a nominal anchor as an important example of how governments control visibility. We show that visibility has an important influence on how governments acquire credibility, and for...

This article reviews David Hendry's Econometrics: Alchemy or Science?

Does globalization widen inequality or increase income risk? Globalization amplifies the effect of idiosyncratic relative productivity shocks. But wider markets reduce the effect of economy-wide supply shocks on world prices. Both forces are at work in the specific factors continuum model of...

We test for fractional dynamics in U.S. monetary series, their various formulations and components, and velocity series. Using the spectral regression method, we find evidence of a fractional exponent in the differencing process of the monetary series (both simple-sum and Divisia indices), in...

We estimate the trend in the transitory variance of male earnings in the U.S. using the Michigan Panel Study of Income Dynamics from 1970 to 2004. Using both an error components model as well as simpler but more approximate methods, we find that the transitory variance increased substantially in...

This paper provides benchmarks of trade restrictiveness and year- on-year changes in trade restrictiveness using the Trade Restrictiveness Index. These benchmark measures stand in sharp contrast to standard measures. For a 28 country sample the TRI is used to compare trade policy in a recent...

A stationary-state perfect foresight model is developed in which housing and land are treated as investment assets convertible to each other at some costs. Investors hold either land or housing and are heterogeneous in the i. i. d idiosyncratic shocks to their conversion costs in every time...