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This paper describes the method used to construct an interregional Commodity by Industry Flow matrix for the United States. The interregional flow matrix method involves the construction of single-state (and DC) SAMs using data from IMPLAN. Once complete, the interregional flows connecting states are estimated using a method based on the Commodity Flow(More)
INTRODUCTION We develop a methodology to use FARS data as an alternative to NOPUS in estimating seat belt usage. The advantages of using FARS over NOPUS are that (i) FARS is broader because it contains more variables relevant for policy analysis, (ii) FARS allows for easy multivariate regression analysis, and finally, (iii) FARS data is more cost-effective.(More)
INTRODUCTION In this paper, we show that FARS data can be a comparable alternative to observational NOPUS data in estimating seat belt use in the United States once we correct for sample selection bias. RESULTS Based on assumptions of independence for seatbelt choice, we establish a lower and upper bound for seatbelt usage rates, and find that once we(More)
We detail the rewards and barriers to participating in multidisciplinary research (MDR) using a 2011 survey of applied economists at U.S. universities. We compare these findings with an earlier 1993 survey to assess if rewards and barriers have changed over time. Different administrative levels of U.S. universities are sending contradictory signals(More)
— Ultra-wideband (UWB) systems possess several distinct features such as very high data rate, large multipath or frequency diversity and improved ranging precision while requiring low-power low-complexity transceivers. Among the different modulation schemes, differential PSK is an attractive option because it does not require channel estimation , and hence(More)
In this course, we will attempt to understand what makes cities tick, what prevents them from ticking accurately and what we can do about these inaccuracies. You can think of this course as being divided into two parts. In one, theories of location will be considered. With these theories we will attempt to understand why cities exist, why they are located(More)
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