Local content protection reconsidered: the case of domestic monopsonist

In this paper we examine how local content protection (LCP) affects the use of the domestic intermediates, the use of total intermediates and the domestic welfare when domestic intermediate-goods market is under monopsony. In the domestic intermediate-goods market under monopsony, the marginal expenditure cost (MEC) of using domestic intermediates has a discontinuous segment because the average expenditure cost (AEC) is a kinked curve. It is shown that there exists a case where because of the discontinuity of the marginal expenditure cost, LCP has no effect on the use of domestic intermediates and has a negative impact on the domestic final-goods producer. This paper provides a summary of the general effects of LCP on the domestic intermediate-goods market under monopsony in terms of resource allocations and the domestic welfare. Moreover, the effects of LCP under monopsony are compared with the case under perfect competition and under free trade.

Born-form approximation for e+ e- to W+ W- to 4 fermions(+gamma)

We review the results on representing the differential cross section for W-pair production, including W decay and hard-photon bremsstrahlung, in terms of a Born-form approximation of fairly simple analytic form.Comment: 16 pages with 3 figures,(eps files), Latex. Invited talk at the XXII International School of Theoretical Physics, Ustron '99, Poland, September 199

A Generalization of APN Functions for Odd Characteristic

Almost perfect nonlinear (APN) functions on finite fields of characteristic two have been studied by many researchers. Such functions have useful properties and applications in cryptography, finite geometries and so on. However APN functions on finite fields of odd characteristic do not satisfy desired properties. In this paper, we modify the definition of APN function in the case of odd characteristic, and study its properties

The Energy Dependence of the Saturation Scale

At low $x \cong Q^2/W^2 << 1$, in deep inelastic scattering, the photon fluctuates into a $q \bar q$ vector state that interacts via two gluons with the proton. The energy dependence is determined by the saturation scale, in our approach given by $\Lambda^2_{sat} (W^2) \sim (W^2)^{C_2}$. Imposing DGLAP evolution, we find $C_2^{theory} = 0.27$ in agreement with the model-independent analysis of the HERA data. Different values of the exponent $C_2$ are correlated with different ratios of the longitudinal to transverse structure function. This stresses the need for experiments to separate longitudinal and transverse contributions in deep inelastic scattering.Comment: To appear in the proceedings of "PHOTON2005 International Conference on the Structure and Interactions of the Photon including the 16th International Workshop on Photon-Photon Collisions", Warsaw, 200