The role of investment banks in acquisitions

We compare acquisitions completed with and without investmentbank advice over the 1981 to 1982 period. We find that the choiceto use an investment bank depends on the complexity of the transaction,the type of transaction (takeovers versus acquisitions of assets),the acquiror's prior acquisition experience, and the degreeof diversification of the target firm. Although acquisitionannouncement returns are lower for firms using investment banks,this difference can be explained by differences in transactioncharacteristics. These results suggest that transaction costsare the main determinant of investment banking choice, followedby contracting costs and asymmetric information costs.     

Human capital,investment and growth: Some results from an endogenous growth model

Recent theoretical literature on the sources of economic growth has emphasized the role of human capital as an internal contributing force in the growth process. Empirical results reported in this paper provide support for this theoretical proposition. Cross-country data from 32 developing countries indicate that human capital (as alternatively measured by the primary school enrollment rate or the adult literacy rate) exerts a significant positive impact upon output growth.     

石油价格进入更加波动的新时期

通过对油价波动的历史原因、市场内在因素和人为因素的分析可以看出，石油市场已进入一个新时期，油价将变得更加动荡，而且在波动中呈上升趋势。预计新的平均价位大体为每桶20美元。为此，石油公司应积极研究贸易策略，一方面设法使自身免受损失，另一方面还要寻求从价格波动中赢利。只有准备充分，才能够抗御油价的剧烈波动和周期性变化，进而获得生存与发展。     

Prevention versus Treatment under Precautionary Regulation: A Case Study of Groundwater Contamination under Uncertainty

Policy discussions on agricultural pollution problems characterize prevention as more cost effective and precautionary than ex post treatment. We derive conditions under which treatment alone is more cost effective in situations involving multiple sources of emissions, multiple sites affected, and a commonly used precautionary approach to uncertainty. We also show that a greater degree of precaution can result in less reliance on prevention. An empirical case study indicates that treatment alone is the most cost-effective means of dealing with nitrate in most Maryland community water system wells. The use of leaching prevention measures is restricted to the most intensive poultry producing areas. The incremental cost of precaution is substantial.     

Valuing Food Store Access: Policy Implications for the Food Stamp Program

Food stamp recipients may lack access to larger stores, reducing the availability of nutritious food. Reliance on smaller stores may have undesirable impacts. Policy alternatives include limiting food stamp redemption to larger stores and subsidizing store development. I estimate that limiting redemption to supermarkets and grocery stores, or supermarkets alone, results in losses ranging from $499.2 million to $1.05 billion, or $1.17 billion to $2.44 billion (respectively) annual loss in food stamp recipient welfare nationwide. The impact of improving access is also significant, ranging from $333.6 million to $931.2 million.     

Impacts of Declining U.S. Retail Beef Demand on Farm-Level Beef Prices and Production

A systems model was estimated to determine the effects of declining U.S. retail beef demand on farm-level beef prices and production. Retail beef demand declined by nearly 66% from 1976 to 1999. Results indicate autonomous shifts in retail demand significantly impacted farm-level demands and production. Based on equilibrium multipliers, the 1976–99 reduction in beef demand decreased real slaughter cattle prices and production by 32.1% and 11.2%, respectively. Real feeder cattle prices and production decreased by 8.0% and 22.6%, respectively. Combining the decreases in farm prices and production, slaughter and feeder cattle producers experienced a real revenue reduction of $13.3 billion (61%) due to the long-term decline in demand.