A MULTINOMIAL APPROXIMATION FOR AMERICAN OPTION PRICES IN LÉVY PROCESS MODELS

This paper gives a tree-based method for pricing American options in models where the stock price follows a general exponential Lévy process. A multinomial model for approximating the stock price process, which can be viewed as generalizing the binomial model of Cox, Ross, and Rubinstein (1979) for geometric Brownian motion, is developed. Under mild conditions, it is proved that the stock price process and the prices of American-type options on the stock, calculated from the multinomial model, converge to the corresponding prices under the continuous time Lévy process model. Explicit illustrations are given for the variance gamma model and the normal inverse Gaussian process when the option is an American put, but the procedure is applicable to a much wider class of derivatives including some path-dependent options. Our approach overcomes some practical difficulties that have previously been encountered when the Lévy process has infinite activity.     

THE RETURNS TO ENDOGENOUS HUMAN CAPITAL IN PAKISTAN'S RURAL WAGE LABOUR MARKET

This paper estimates the private returns to human capital in Pakistani rural labour markets. The rich data used permit inclusion of several dimensions of human capital and control for endogeneity resulting from investment in human capital. The results suggest that, without data on determinants of human capital, it would not be possible to disentangle the separate effect of each dimension of human capital on wage differentials nor to distinguish human capital explanations for wage differentials from signalling and credentialist models. With control for endogeneity of human capital and selectivity into wage employment, cognitive achievement, but not schooling attainment separate from cognitive achievement nor long-run health status, affects wage differentials.     

Book Reviews

Andrew MacIntyre (ed.), Business and Government in Industrialising Asia, Allen & Unwin, Sydney, 1994, pp. xii + 312. Paper: A$29.95.

John Bresnan, From Dominoes to Dynamos: The Transformation of Southeast Asia, Council on Foreign Relations, New York, 1994, pp. x + 115. $17.95.

Anthony Reid, Southeast Asia in the Age of Commerce 1450–1680: Volume Two, Expansion and Crisis, Yale University Press, New Haven and London, 1993, pp. xv + 390.

Binhadi, Financial Sector Deregulation, Banking Development and Monetary Policy: The Indonesian Experience (1983–1993), Indonesian Bankers' Institute, Jakarta, 1995.

Anwar Shah and Zia Qureshi, with Amaresh Bagchi, Brian Binder, and Heng-fu Zou, Intergovernmental Fiscal Relations in Indonesia: Issues and Reform Options, World Bank Discussion Papers 239, Washington DC, pp. xxxii + 279. $17.95; A$425.00; NZ$30.25.

Jacqueline Vel, The Uma-economy: Indigenous Economics and Development Work in Lawonda, Sumba (Eastern-Indonesia), Wageningen, pp. xiv + 283. $20.00 + $8 postage & handling.

Joao Mariano de Sousa Saldanha, The Political Economy of East Timor Development, translated by Theresia Slamet and P.G. Kattopo, Pustaka Sinar Harapan, Jakarta, 1994, pp. 414.

Jan-Paul Dirkse, Frans H$uUsken and Mario Rutten (eds), Development and Social Welfare: Indonesia's Experiences under the New Order, KITLV Press, Leiden, 1993, pp. 267.

W.G. Huff, The Economic Growth of Singapore: Trade and Development in the Twentieth Century, Cambridge University Press, Cambridge, 1994, pp. xxi + 472. A$60.

Saha Dhevan Meyanathan (ed.), Industrial Structures and the Development of Small and Medium Enterprise Linkages: Examples from East Asia, The World Bank (Economic Development Institute of the World Bank Seminar Series), Washington DC, 1994, pp. v + 158. Paper: $9.95.

Thee Kian Wie, Industrialisasi di Indonesia: Beberapa Kajian, LP3ES, Jakarta, pp. xxvi + 278 (including Introduction by Mari Pangestu).     

Method for identifying strategic objectives in strategy maps

This paper describes a simple tool for identifying strategic objectives as part of the design of strategy maps, based on the balanced scorecard, and meant to be used in organisations to establish performance indicators. To design the tool, a number of companies that implemented the balanced scorecard were analysed, in order to obtain their methodologies to create strategy maps. Three types of methods were found, different from each other in the way the strategic objectives are defined. By studying the benefits and drawbacks of the three methods, a simple, method was obtained. Basically, the method identifies general and specific strategic objectives and uses a modified SWOT (strengths, weaknesses, opportunities, threats) analysis. This paper also makes an analysis of the type of strategic objectives that the studied companies defined as part of the balanced scorecard implementation process.     

The rise of economics in competition policy: A Canadian perspective

Competition policy in Canada and elsewhere has changed remarkably over the last 50 years—in large measure due to advances in economics. In this article, we trace the impact of developments in industrial organization on the three central areas of competition policy: cartels, single firm conduct and mergers. We focus on Canadian competition policy but draw comparisons with developments in the United States and Europe.     

Mutual fund separation in financial theory—The separating distributions

This paper finds necessary and sufficient conditions on the stochastic structure of asset returns for portfolio choice to be equivalent to choice among a limited number of mutual funds of assets, independent of investors' preferences. This type of separation result is central to modern financial theory and the distributions which satisfy these conditions, the separating distributions, form the underlying basis for much of this theory.     

The Role of the ACCC in Australian Competition Policy

This article examines the ACCC's enforcement of competition policy, the need to strengthen its anti-competitive provisions and the criticism of the ACCC's power.     

Simultaneous versus sequential information processing

Subjects update prior information simultaneously versus sequentially. The mean prediction is remarkably close to the correct Bayesian estimate with simultaneous information, but differs significantly conditional on whether good news precedes bad news or vice versa.