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Option Pricing Model with Time-Varying Volatility
(Department of Economics. University of Zimbabwe (UZ.), 1991-10)
The paper extends the option pricing model of Merlon (1973) with lime-varying volatility of the underlying security. We develop the theoretical option model. Time-varying volatility is constructed by fitting a lime-polynomial ...
The Dynamics of Trade and Economic Relations in Southern Africa: Current Status and Options for the Future
(Department of Economics, University of Zimbabwe. (UZ), 1991-10)
The aim of this paper is to discuss economic and trade relations in Southern Africa, both the current status and options for the future. The region considered covers eleven countries, namely, Zimbabwe, Zambia, Botswana, ...