The non-negativity constraint on inventories imposed on the rational expectations theory of speculative storage implies that the conditional mean and variance of commodity prices are non-linear in lagged prices and have a kink at a threshold point. In this paper, the structural parameters of...

This article examines the links that have recently been studied between poverty, high fertility and undernourishment, on the one hand, and degradation of the local environmental-resource base and civic disconnection, on the other, in poor countries. An account is offered of a number of pathways...

Sometimes regulators become experimenters: they try ideas out before implementing them, put novel schemes to the test in order to predict their likely impact, or conduct pilot programmes before executing new policies. Regulators find experiments very expedient, as they allow them to forecast the...

Abstract Commentators on the `East Asian Miracle' of inclusive growth have often pointed toward shared rural growth policies. But why were these policies not chosen elsewhere? This paper models voters who invest in either subsistence or a complex technology in which public goods complement...