Peritoneal fluid in children with intussusception: Its sonographic detection and relationship to successful reduction

A retrospective review of the abdominal/pelvic ultrasound (US) examinations in 21 consecutive children with intussusception proven on barium enema was performed to determine what is the incidence of US detected peritoneal fluid in this population and to see if the rate of reduction was different in this subset. Twelve of the 21 children (57%) had free fluid demonstrated with US. Eight of these 12 (67%) had successful reduction. Six of the nine children (67%) without free fluid were also successfully reduced.     

Smallholder Supply Response to Marketing Board Activities in a Dual Channel Marketing System: The Case of Zambia

In recent years, parastatal grain marketing boards have re‐emerged as important elements of grain markets in eastern and southern Africa, yet little is known about how farmers are responding to their scaled up activities. This article develops a conceptual model of farmers’ production decisions in the context of dual output marketing channels (government and private sector) when output prices at harvest time and the availability of one of the marketing channels are unknown at planting time. It then applies the model to the case of Zambia and uses nationally representative household‐level panel survey data to estimate the effects of the Food Reserve Agency (FRA), the government parastatal maize marketing board, on smallholder crop production and fallow land. The FRA buys maize from smallholders at a pan‐territorial price that typically exceeds market prices in major maize producing areas. Results suggest that increases in the farmgate FRA maize price raise farmer maize price expectations, which induces a supply response. Smallholders respond to an increase in the FRA price by extensifying their maize production. On average, a 1% increase in the FRA price is associated with 0.06% increases in smallholders’ maize area planted and quantity harvested. There is also some evidence that farmers reduce the area of land under fallow in response to FRA incentives but there is no evidence of reductions in the area planted to other crops.     

A comparison of infrastructure development in select eastern and western European countries pre/post the fall of the Berlin wall

The role that infrastructure plays in the economic development of countries has been a fascination of researchers for decades. Questions regarding which comes first, infrastructure or economic growth and which of the various dimensions of infrastructure (e.g., roads, trains, seaports, and the like) have the greatest/fastest impact on the national and personal income in a developing country are yet to be sufficiently answered. Through a comparative analysis of select Eastern and Western European countries both prior to and after the fall of the Berlin Wall, these questions are examined in order to provide insight concerning the effects of developmental efforts on former command economies. Managerial and public policy implications are offered subsequent to this unique investigation of centrally managed transition economies that have moved to market-driven economies over the past 20 years. © 1999 John Wiley & Sons, Inc.     

Imperfect public choice

We model imperfect governments with public choices that are sequential, myopic and not free of error. We first use this framework to explore governmental incremental budgeting. We argue that a model of bounded rationality is required to capture the empirical reality of incremental budgeting. We then provide a model that integrates bounds errors and systematic errors. We argue that the empirical evidence is that bounds errors and systematic errors are inextricably intertwined—some level of bounded rationality is required for systematic errors to emerge. We use this to explore political information lobbying. A testable hypothesis is that lobbyists will focus efforts on policy-makers of low ability. We show that choosing leaders with high ability, that is Madison's wisdom to discern, is important, especially when policy decisions concern dangerous products (rifles) or dangerous environments (pandemics).