The purpose of this dissertation is to empirically analyze the relationship between tax rates and tax evasion and to measure the magnitude of tax evasion in several African countries. I build a taxpayer behavioral model based on income tax evasion by combining the utility maximization approach...

When a nuisance parameter is unidentified under the null hypothesis, standard testing procedures cannot be applied due to the singularity of the information matrix. Probably best known examples are the problems of unknown change points and the mixtures of distributions in econometrics and...

This dissertation concerns theoretical and empirical aspects of a class of conditionally heteroskedastic models. We apply the White's information matrix (IM) test to the linear regression model with autocorrelated errors. A special case of one component of the test is found to be identical to...

Estimation of the derivative of the log density, or score, function is central to much of recent work on adaptive estimation of econometric models. Most existing score function estimation methods approach the problem by differentiating the logarithm of an estimated density function, such as the...

We develop a spatial model of bulk commodity transportation price formation. The spatial transportation price model is first developed for the monopolist carrier. Then the model is extended to quantity-setting and price-setting duopolist carriers under incomplete cross-hauling. Measures...

The purpose of this thesis is a characterization of the monetary regime followed by the Brazilian authorities during the 80's and beginning of the 90's, and its consequences for the credibility of anti-inflationary policies, the solvency condition of the government, and the power of restrictive...

The inability of institutions in an economy to accommodate full diversification of risks is the key idea behind the incomplete asset markets and the differential information models. The interface between these classes of models, lies in the fact that both of them limit the degree of risk sharing...

That a firm's initial equityholders often emerge from Chapter 11 bankruptcy proceedings with more value than the absolute priority rule (APR) would suggest is now a generally accepted fact. The form in which this value is distributed, however, is less well understood. In particular, why do the...