The purpose of this econometric analysis is to model the concentration of particle number emissions from a hybrid diesel-electric bus in terms of operating characteristics. Important aspects of this study are that particle number concentrations are modeled instead of particle mass, and the...

Using data from 1995 and 1996, we estimate the cost of the Arizona Enhanced I/M Program and the emission reductions achieved. We begin by enumerating briefly the components of I/M costs and discuss their size and incidence. Then we describe the empirical information from Arizona and how we use...

With perpetual strains on resources, road agencies need to develop network-level decision-making frameworks to ensure optimum resource allocation. This is especially true for intelligent transport systems (ITS) and, in particular, variable message signs (VMSs), a key component of incident...

In recent business environments, collaborations among organisations raise an increased demand for swift establishment. Such collaborations are increasingly formed without prior experience of the other partner's previous performance. The STochastic REputation system (STORE) is designed to provide...

New residential construction is significantly more procyclical in emerging markets than in developed countries, although the correlation between aggregate investment and output is similar across emerging and developed countries. This paper shows that a multi-sector stochastic growth model with a...

Castro and Coen-Pirani (2008) document that aggregate skilled hours and employment both became more volatile after the mid-1980s, in contrast to the simultaneous volatility decline of most aggregates, including overall hours and employment and unskilled hours and employment. In chapter 1, I...

My thesis explores the following question: how workers of different skill are allocated across jobs and unemployment over the business cycle. I am interestedin understanding the "over-qualification" of workers that occurs during periods of high unemployment, as increased congestion in the labor...

We have analyzed the application of decision analysis and risk management tools to solve practical problems associated with Climate Change and Risk Detection in the financial services industry. Geoengineering, which is described as an intentional modification of earth’s environment to mitigate...

Standard economic intuition of revealed preference implies that when two parties freely enter into a contract then neither should be worse off. In this study, we develop a simple model showing that introducing the opportunity to contract can lower welfare for some, and perhaps all, contracting...