Browsing by Author "Dumortier, Jerome"

Now showing 1 - 10 of 30
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    All plug-in electric vehicles are not the same: Predictors of preference for a plug-in hybrid versus a battery-electric vehicle
    (Elsevier, 2018-12) Lane, Bradley W.; Dumortier, Jerome; Carley, Sanya; Siddiki, Saba; Clark-Sutton, Kyle; Graham, John D.; School of Public and Environmental Affairs
    This study analyzes data from a survey of drivers (n = 1080) administered in late 2013 to assess factors that influence potential car buyers to consider two different types of plug-in electric vehicles (PEVs) in the United States: plug-in hybrid electric vehicles (PHEVs) and battery electric vehicles (BEVs). The results indicate distinct profiles of respondents preferring PHEVs, which have a gasoline backup engine, versus battery BEVs, which rely solely on a battery for power. Respondents interested in selecting a PHEV consider it more for its economic benefits, such as reduced gasoline and maintenance expenditures. Respondents preferring a BEV are drawn to its environmental and technological appeal. The absence of range anxiety for PHEV is a major factor influencing potential PEV buyers.
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    Changes in Fuel Tax Policy and the Impact on State and Federal Revenue
    (2014-03) Dumortier, Jerome; Marron, John; Zhang, Fengxiu
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    China-U.S. trade dispute and its impact on global agricultural markets, the U.S. economy, and greenhouse gas emissions
    (Wiley, 2021) Elobeid, Amani; Carriquiry, Miguel; Dumortier, Jerome; Swenson, David; Hayes, Dermot J.; School of Public and Environmental Affairs
    China is a major importer of agricultural products and we examine retaliatory tariffs imposed by China on U.S. pork, soybeans, corn, and wheat. We use an agricultural trade model to determine the impacts on agricultural commodity markets and combine our results with an input-output model to measure economic effects in the United States. In addition, we calculate global greenhouse gas (GHG) emissions from land-use change. The consequences of retaliatory tariffs are both trade destruction (lower overall trade) and trade diversion (trade diverted away from the U.S. and to other exporting countries). By the end of the projection period, total U.S. pork exports decline by 4.7%. Total soybean and wheat exports decrease by 31.2% and 0.5%, respectively whereas corn exports increases by 4.0%. Domestic U.S. retail pork prices decline by 0.8% and commodity farm prices decrease by 4.2%, 5.1%, and 15.8% for corn, wheat, and soybeans, respectively. The decline in foreign demand reduces U.S. production and welfare. Key among these impacts are a loss of nearly 15,400 jobs and a fall in labor income by $1.35 billion due to a $3.70 billion decline in national output at the beginning of the projection period. By the last year of the projection, the impacts grow to almost 30,000 fewer jobs and $2.31 billion less labor income. The U.S. economy experiences a loss of slightly under $6.80 billion in national output. Changes in trade due to the tariffs result in a reduction of GHG emissions from land-use change of up to 83.7 teragram (Tg) of CO2-equivalent.
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    Co-firing in Coal Power Plants and its Impact on Biomass Feedstock Availability
    (Elsevier, 2013-09) Dumortier, Jerome; School of Public and Environmental Affairs
    Several states have a renewable portfolio standard (RPS) and allow for biomass co-firing to meet the RPS requirements. In addition, a federal renewable fuel standard (RFS) mandates an increase in cellulosic ethanol production over the next decade. This paper quantifies the effects on local biomass supply and demand of different co-firing policies imposed on 398 existing coal-fired power plants. Our model indicates which counties are most likely to be able to sustain cellulosic ethanol plants in addition to co-firing electric utilities. The simulation incorporates the county-level biomass market of corn stover, wheat straw, switchgrass, and forest residues as well as endogenous crop prices. Our scenarios indicate that there is sufficient feedstock availability in Southern Minnesota, Iowa, and Central Illinois. Significant supply shortages are observed in Eastern Ohio, Western Pennsylvania, and the tri-state area of Illinois, Indiana, and Kentucky which are characterized by a high density of coal-fired power plants with high energy output.
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    Dress to Repress: Exploring How Dress Codes & Norms Harm Black Women in the Workplace
    (2024-06) Beecham, Jasmine Grace; Derricks, Veronica; Pietri, Evava S.; Johnson, India; Williams, Jane; Dumortier, Jerome
    Dress codes were originally based on safety practices but have evolved into standards around perceived professionalism that uphold White masculine norms in the workplace. At the crossroads of White male standards is Black women’s hairstyling habits. While some Black women may engage in impression management and straighten their hair to fit in more, others may not feel authentic with straightened hair and could choose to deliberately express their identity through their hairstyle. Across two studies, I examine whether dress codes and norms targeting natural Black hairstyling habits lead to threats to authenticity and identity safety, in turn leading to negative organizational outcomes. A measure of one’s desire to deliberately express identity (general and Black) through hair was included to examine potential moderation. In Study 1, participants were randomly assigned to one of three hypothetical dress code conditions – a restrictive dress code, inclusive dress code, or a control of general company values with no dress information. Hypotheses were almost fully supported in Study 1, with restrictive dress codes having the lowest identity safety and authenticity outcomes and inclusive having the highest. The contrast between restrictive vs inclusive dress codes and the subsequent authenticity outcome was moderated by both Hair Identity & Hair Expression Importance. Hair Expression Importance also moderated the relationship between restrictive vs inclusive dress codes and identity threat. Lower feelings of authenticity and identity safety both led to lower feelings of organizational attraction (for all moderator models). In Study 2, participants all saw the same inclusive dress code for the company and were then randomly assigned to one of three dress norms – unaccepting, accepting, or an unknown norms control. Unaccepting dress norms led to the lowest feelings of authenticity and identity safety and accepting dress norms led to the highest. Unlike in Study 1, neither hair scale moderated the relationship between the dress norms contrasts and authenticity. Unexpectedly, Hair Expression Importance partially moderated the relationship between dress norms and identity threat. Lower feelings of authenticity once again led to lower organizational attraction, but identity safety did not act as a significant predictor (for all moderator models).
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    Effects of Life Cycle Cost Information Disclosure on the Purchase Decision of Hybrid and Plug-In Vehicles
    (2014-06) Dumortier, Jerome; Siddiki, Saba; Carley, Sanya; Cisney, Joshua; Krause, Rachel M.; Lane, Bradley W.; Rupp, John A.; Graham, John D.
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    Effects of Life Cycle Cost Information Disclosure on the Purchase Decision of Hybrid and Plug-In Vehicles
    (Elsevier, 2015-02) Dumortier, Jerome; Siddiki, Saba; Carley, Sanya; Cisney, Joshua; Krause, Rachel M.; Lane, Bradley W.; Rupp, John A.; Graham, John D.; School of Public and Environmental Affairs
    Energy-saving technologies have a difficult time being widely accepted in the marketplace when they have a high initial purchase price and deferred financial benefits. Consumers might not realize that, in the long-run, the financial benefits from reduced energy consumption offset much or all of the initial price premium. One strategy to address consumer misconception of this advantage is to supply information on the “total cost of ownership”, a metric which accounts for the purchase price, the cost of the fuel, and other costs over the ownership period. In this article, we investigate how providing information on five-year fuel cost savings and total cost of ownership affects the stated preferences of consumers to purchase a gasoline, conventional hybrid, plug-in hybrid, or battery electric vehicle. Through an online survey with an embedded experimental design using distinct labels, we find that respondent rankings of vehicles are unaffected by information on five-year fuel cost savings. However, adding information about total cost of ownership increases the probability that small/mid-sized car consumers express a preference to acquire a conventional hybrid, plug-in hybrid, or a battery-electric vehicle. No such effect is found for consumers of small sport utility vehicles. Our results are consistent with other findings in the behavioral economics literature and suggest that further evaluation of the effects of providing consumers with information on the total cost of vehicle ownership is warranted.
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    The effects of potential changes in United States beef production on global grazing systems and greenhouse gas emissions
    (Office of the Vice Chancellor for Research, 2013-04-05) Dumortier, Jerome; Hayes, Dermot J.; Carriquiry, Miguel; Dong, Fengzia; Du, Xiaodong; Elobeid, Amani; Fabiosa, Jacinto F.; Martin, Pamela A.; Mulik, Kranti
    With climate change becoming an increasingly pressing issue together with a world population of 7 billion people in 2011, significant pressure is put on global agriculture and forestry. Although treated separately in national GHG inventories, there is little doubt that both categories are closely linked and climate policies targeting agriculture will have spillover effects on forestry and vice versa. Hence, the implementation of large-scale agricultural policies is prone to unintended consequences. For this poster, we analyze the hypothesis that a reduction of cattle in the U.S. causes a net increase in GHG emissions on a global scale. We couple a global agricultural production and trade model with a greenhouse gas model to assess leakage associated with modified beef production in the United States. The effects on emissions from agricultural production (i.e., methane and nitrous oxide emissions from livestock and crop management) as well as from land-use change, especially grazing system, are assessed. We find that a reduction of U.S. beef production induces net carbon emissions from global land-use change ranging from 37 to 85 kg CO2-equivalent per kg of beef annualized over 20 years. The increase in emissions is caused by an inelastic domestic demand as well as more land-intensive cattle production systems internationally. Changes in livestock production systems such as increasing stocking rate could partially offset emission increases from pasture expansion. In addition, net emissions from enteric fermentation increase because methane emissions per kilogram of beef tend to be higher globally.