Quentin Wodon and Saul S. Morris November 2001 Abstract While it may be feasible to target those receiving relief after a natural disaster, it is difficult to differentiate the amount of relief provided among beneficiaries. This is because much of the relief consists of food, clothing, and medicine, all goods for which the absorptive capacity of households is limited. Empirical tests using data...

One approach to supply chain coordination is early order commitment, whereby a retailer commits to purchase a fixedorder quantity at a fixed delivery time before demand uncertainty is resolved. In this paper, we develop an analytical model to quantify the cost savings of an early order commitment in a two-level supply chain where demand is serially correlated. A decision rule is derived to dete...

This paper presents a potential solution to the home bias puzzle based on a new open economy macroeconomics model. In response to technology shocks, sticky prices generate a negative correlation between labor income and the profits of domestic firms, leading to home bias in equity holdings. In contrast, under flexible prices, labor income and the profits of the domestic firms are positively cor...

We present a model incorporating both social and economic components, and analyze their interaction. The notion of a social asset, an attribute that has value only because of the social institutions governing society, is introduced. In the basic model, agents match on the basis of income and unproductive attributes. An attribute has value in some equilibrium social institutions (matching patter...

It is now well established that the volatility of asset returns is time varying and highly persistent. One leading model that is used to represent these features of the data is the stochastic volatility model. The researcher may test for non-stationarity of the volatility process by testing for a unit root in the log-squared time series. This strategy for inference has many advantages, but is n...