A mixture model approach is developed that simultaneously estimates the posterior membership probabilities of observations to a number of unobservable groups or latent classes, and the parameters of a generalized linear model which relates the observations, distributed according to some member...

This paper presents a conditional mixture, maximum likelihood methodology for performing clusterwise linear regression. This new methodology simultaneously estimates separate regression functions and membership in K clusters or groups. A review of related procedures is discussed with an...

A number of studies have applied non-market valuation techniques to measure the value of cultural goods. Virtually all of these studies are single case applications and rely mostly on stated preferences, such as contingent valuation techniques. We compare the relative value of multiple,...

We show that the effects of overfitting and underfitting a vector autoregressive (VAR) model are strongly asymmetric for VAR summary statistics involving higher-order dynamics (such as impulse response functions, variance decompositions, or long-run forecasts) . Underfit models often...

Medical decisions should be based on good evidence. But this does not mean that health care professionals should practice evidence-based medicine. This dissertation explores how these two positions come apart, why they come apart, and what we should do about it. I begin by answering the...

This project began with the question: What keeps us from achieving sustainable happiness, happiness for ourselves and future generations?I have chosen to focus on the citizen/consumer conflict which occurs when our consumer choices are incongruous with our moral obligations to society. This...

Debates about poverty relief and foreign aid often hinge on claims about how many poor people there are in the world and what constitutes poverty. Good measures of poverty are essential for addressing the world poverty problem. Measures of poverty require a basis for determining who is poor and...

In the inherently anarchic international system the validity of moral principles is weakening. To overcome anarchy global governance is needed. It means efficient international institutions, but also pressures from the global civil society and the self-regulation of business. Multinational firms...