In this paper, we examine the robust Wald test statistic for SUR systems with adding up restrictions where the same explanatory variables are present in all equations and where heteroskedasticity and/or autocorrelation of unknown forms may be present. For this case, the coefficients are usually...

The purpose of this paper is twofold. First, it introduces a new version of the Edgeworth process with trading activities centered around self-interested enterprising arbitragers; and second it examines how the prices of the derived securities are deteremined under this process.