Aggregation effects on price and expenditure elasticities in a quadratic almost ideal demand system

Abstract.  While it is well known that demand elasticities calculated at the macro level will in general differ from those calculated at the micro level because of aggregation effects, there remain the questions of how large the effects are and how they vary with the degree of inequality in the income distribution. We explore these questions with models based on a quadratic version of the Almost Ideal Demand System. We investigate the elasticity differences theoretically and then calibrate the models and generate numerical results, using income data for seven countries with widely different distributions. The aggregation effects are found generally to be rather small, even with highly unequal income distributions.     

Dynamic effects of externalities,optimal saving and economic growth

Conclusion Recognizing the fact that provision of mixed public goods can result in both consumption externalities of the Samuelsonian variety as well as production externalities we set out to extend the earlier results of Rao and Kalpagam (1977) on the effect of public goods on economic growth. In so doing, we considered three standard specifications of production externalities and enlarged the concept of consumption displacement. Our basic conclusion is that the results of our earlier paper remain valid under the more general conditions set out in this paper.     

Current issues in European migration

The authors examine recent migration patterns into and within the European Union. Issues involving asylum and migration policy are discussed, and problems caused by differing naturalization practices in different countries are considered. Skill patterns of migrants and problems in labor markets are also investigated.     

What's it worth? A general manager's guide to valuation

Behind every major resource-allocation decision a company makes lies some calculation of what that move is worth. So it is not surprising that valuation is the financial analytical skill general managers want to learn more than any other. Managers whose formal training is more than a few years old, however, are likely to have learned approaches that are becoming obsolete. What do generalists need in an updated valuation tool kit? In the 1970s, discounted-cash-flow analysis (DCF) emerged as best practice for valuing corporate assets. And one version of DCF-using the weighted-average cost of capital (WACC)-became the standard. Over the years, WACC has been used by most companies as a one-size-fits-all valuation tool. Today the WACC standard is insufficient. Improvements in computers and new theoretical insights have given rise to tools that outperform WACC in the three basic types of valuation problems managers face. Timothy Luehrman presents an overview of the three tools, explaining how they work and when to use them. For valuing operations, the DCF methodology of adjusted present value allows managers to break a problem into pieces that make managerial sense. For valuing opportunities, option pricing captures the contingent nature of investments in areas such as R&D and marketing. And for valuing ownership claims, the tool of equity cash flows helps managers value their company's stake in a joint venture, a strategic alliance, or an investment that uses project financing.     

The recent failure of U.S. monetary policy

Summary The very slow growth of the broad money supply has been a primary source of U.S. economic weakness in 1990 through 1992. The velocity link between M2 and the subsequent level of nominal GDP has not declined. But changes in bank reserves brought about by open market operations have had much less effect onM2 than the Fed anticipated for two reasons: (1) reserve requirements now apply to only a small fraction of totalM2; and (2) the new bank capital requirements limit some banks ability to lend. The Federal Reserve failed to appreciate the importance of these conditions and misjudged the strength of the monetary policy stimulus that it was providing.Professor of Economics, Harvard University, and President of the National Bureau of Economic Research.Sixth Tinbergen Lecture delivered on October 2, 1992, in The Hague for the Royal Netherlands Economic Association.     

Organizational climate factors and the evaluation of technical ideas

Based on data obtained from 359 idea evaluators, canonical correlation analysis was used to examine the relationship between several organizational factors and a set of criteria used in the evaluation of technical ideas. In contrast to other studies, it was found that organizational factors—assessed in terms of organizational climate—could be explained in terms of two dimensions: organizational clarity and risk. Technical evaluation criteria could be explained in terms of professional self-gratification and organizational responsibility. In light of the multivariate relationship among the two sets of factors, a number of organizational design implications are outlined.     

Indonesian population growth 1971-1980

The author reviews the accuracy of the preliminary results of the 1980 Indonesian population census. Methodological weaknesses and errors made in implications for evaluating the effectiveness of family planning programs are considered