The GATS and liberalization in a natural-resource rich country

Abstract

We highlight the role of natural resources in countries that use resource revenues to subsidize employment in state-owned services sectors by developing a model of service provision where domestic incumbents and a foreign entrant compete. We find that when natural resource prices have a higher likelihood of increasing, domestic firms control most of the market share but that industry output drops. However, the output of the services industry rises with domestic firms losing market share when natural resource prices are likely to go down. This suggests that a government focused narrowly only on the growth and development of its economy would prefer services liberalization when natural resource prices are likely to be higher.     

THE DOTHAN PRICING MODEL REVISITED

We compute zero‐coupon bond prices in the Dothan model by solving the associated PDE using integral representations of heat kernels and Hartman–Watson distributions. We obtain several integral formulas for the price P(t, T) at time t > 0 of a bond with maturity T > 0 that complete those of the original paper of Dothan, which are shown not to always satisfy the boundary condition P(T, T) = 1 .     

AN ONLINE PORTFOLIO SELECTION ALGORITHM WITH REGRET LOGARITHMIC IN PRICE VARIATION

We present a novel efficient algorithm for portfolio selection which theoretically attains two desirable properties:

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