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Publications (29)
This paper combines data on the timing and intensity of soil and water conservation interventions in select Ethiopian watersheds from 2009 to 2016 with a pixel-level panel of vegetative cover and soil moisture derived from satellite imagery to assess the biophysical impacts of such measures using a difference-in-differences specification. The resul...
To appreciate overall impacts of fragmentation, underlying channels, and potential heterogeneity by holding size, we distinguish average fragment size and mean inter-fragment distance as two aspects of this phenomenon. Estimating a cost function with associated input demand equations on a large nationally representative Indian survey, robust to end...
Regional Studies. Are rural homeowners in the workforce as mobile as urban homeowners? This paper focuses on whether rural unemployed homeowners end their unemployment spells more or less often without moving than urban homeowners. A competing hazard model is estimated using a five-year panel that controls for the demographics of the individuals an...
ABSTRACT This study examines aggregate county income growth across the 48 contiguous states from 1990 to 2005. To control for endogeneity, we estimate a two-stage spatial error model and implement a number of spatial bootstrap routines to infer parameter significance. Among the results, we find that outdoor recreation and natural amenities favor po...
In this paper we examine more closely the factors associated with production inefficiency in China's agriculture. The approach we take involves a two-stage process where output efficiency scores are first estimated using data envelopment analysis, and then in the second stage, variation in the resulting efficiency scores is explained using a trunca...
The objective of this paper is to estimate the impact of regional innovation on employ-ment and population growth in the U.S. Midwest. A measure of effective local innovation is created by fitting a first-order spatial autoregressive model to create a measure of regional innovation using patents. In the second stage, employment and population growt...
In this paper we study the factors associated with innovation in the food processing industry using a survey of Western Canadian food processors. Our primary motivation is to gain a better understanding of the mechanics of innovation related to the adoption of product and process innovation. In particular, we consider the jointness of ex post reali...
In this paper we examine more closely the factors associated with production inefficiency in China’s agriculture. The approach we take involves a two-stage process where output efficiency scores are first estimated using data envelope analysis (DEA), and then in the second stage, variation in the resulting efficiency scores are explained using...
Using the US states plus the District of Columbia, output-oriented innovative efficiency scores are computed using data envelope analysis (DEA) where total patent counts serve as the measure of innovative output and industry and academic research and development expenditures, and numbers of research scientists, graduate students, and postdoctoral p...
This study examines the role of recreational amenities, both within the county as well in neighboring counties, on employment growth using data from 618 counties in the U.S. midwest. Using a wide range of amenity variables and spatial econometric methods, we find that natural and recreational amenities have played a role in non-farm employment grow...
In this paper, we examine more closely some of the forces that underlie economic growth at the county level. In an effort
to describe a much more comprehensive regional economic growth model, we address a variety of different hypotheses by introducing
a large number of growth-related variables. When formulating our hypotheses and specifying our gro...
Using a new brand of cigarettes with less nicotine content than conventional cigarettes, we conducted experimental auctions at two grocery stores to estimate smokers' value of nicotine. Our approach is novel because the brand of cigarettes auctioned was new to the market and the cigarette's nicotine content is reduced using genetic modification, wi...
This paper evaluates county-level economic growth impacts of casinos along waterways in six US states over the years 1995-2002. In a manner consistent with in- dividual state legislation regarding legalized riverboat gambling, the dataset in- cludes those counties in the states of Illinois, Indiana, Iowa, Louisiana, Missouri, and Mississippi adjace...
Environmental and consumer groups have called for mandatory labeling of genetically engineered (GE) food products in the United States, stating that consumers have the “right to know.†Herein, we use a nonhypothetical field experiment to examine the willingness to pay for GE-labeled products, using the only second-generation GE product currently...
In this paper we examine the relation between geographic location and innovative behavior. Knowledge spillins, as opposed to knowledge spillovers, are modeled as an externality which exists between geographically close economic agents and enters the representative inventor production function explicitly from neighboring regions. To proxy new innova...
In this paper we examine the relation between geographic location and innovative behavior. Knowledge spillins, as opposed to knowledge spillovers, are modeled as an externality which exists between geographically close economic agents and enters the representative inventor production function explicitly from neighboring regions. To proxy new innova...
From a field experiment to estimate consumer preferences for reduced-nicotine cigarettes, our results suggest younger adult smokers who want to quit smoking are most likely to purchase low-nicotine cigarettes. Hard core smokers, however, revealed no demand for these cigarettes.. Partial funding of this project came from the University of Wyoming. T...
The primary focus of this paper is the impact of knowledge creation and innovative activity on employment growth. A number of employment growth hypotheses are tested for counties in Iowa, Minnesota, Missouri, Kansas, Nebraska, South Dakota and North Dakota. We assume that new knowledge and innovative activity are embodied in patent filings for the...
This study uses an overlapping generations (OLG) model with two labor types and two employment regions to examine factors driving labor migration. Specifically, we examine the effect of innovative behavior on employment growth. Using an OLG model, we test this hypothesis in the Midwestern States of Iowa, Minnesota, Missouri, Kansas, Nebraska, South...
This study identifies factors that explain growth in rural areas using data from 618 counties in the U.S. rural heartland. We evaluate many of the growth hypotheses in the context of sectoral employment growth for counties in Iowa, Minnesota, Missouri, Kansas, Nebraska, South Dakota and North Dakota. Separate estimates for rural and urban counties...
Abstract Currently Unavailable.
In December 2007 the U.S. economy entered a depression and unemployment surged to highs not seen in 30 years. The first part of this paper uses the most recently available data from BLS to examine the geography of the recession. We focus on the similarities and differences in the recession’s impact on nonmetropolitan and metropolitan counties, and...
University Microfilms order no. 31-18247. Thesis (Ph. D.)--Iowa State University, 2003. Includes bibliographical references.