Browsing by Subject "investment"
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Item Adult Female English Language Learners: Investment, Identity and Benefits(2013-07-31) Wharton, AnnaELLs are a growing community in the United States and their learning needs are significantly different from younger learners, collegiate ELLs or Adult Basic Education students. Additionally, adult female ELLs have their own needs and motives for investing in the English language. This study explores the self-recounted experiences of three adult female English language learners? (ELLs) motivation for investing in English language learning, their identities and the benefits gained in a nonacademic learning setting in Texas. Data for this study was gathered using a background questionnaire, individual interview, group interview and in-class observation using an instrument that looks for visible markers of investment. First, each participant?s investment and identity are analyzed with regard to how the two intersect and influence each other throughout the language learning experience. Second, investment and benefits are examined and presented to demonstrate before and after pictures of the participants? experiences learning English, asking, ?Have the learners gained what they sought to gain?? and ?Is it worth it?? Findings substantiate prior research on the influence that investment and identity have on each other in language learning, while also clearly demonstrating the explicit relationship between investment and benefits. The study concludes with an understanding that adult educators must recognize the individuality of each adult learner and her circumstances.Item Effects of federal risk management programs on investment, production, and contract design under uncertainty(Texas A&M University, 2006-04-12) Seo, SangtaekAgricultural producers face uncertain agricultural production and market conditions. Much of the uncertainty faced by agricultural producers cannot be controlled by the producer, but can be managed. Several risk management programs are available in the U.S. to help manage uncertainties in agricultural production, marketing, and finance. This study focuses on the farm level economic implications of the federal risk management programs. In particular, the effects of the federal risk management programs on investment, production, and contract design are investigated. The dissertation is comprised of three essays. The unifying theme of these essays is the economic analysis of crop insurance programs. The first essay examines the effects of revenue insurance on the entry and exit thresholds of table grape producers using a real option approach. The results show that revenue insurance decreases the entry and exit thresholds compared with no revenue insurance, thus increasing the investment and current farming operation. If the policy goal is to induce more farmers in grape farming, the insurance policy with a high coverage level and high subsidy rate is effective. In the second essay, a mathematical programming model is used to examine the effects of federal risk management programs on optimal nitrogen fertilizer use and land allocation simultaneously. Current insurance programs and the Marketing Loan Program increase the optimal fertilizer rate 2% and increase the optimal cotton acreage 119-130% in a Texas cotton-sorghum system. Assuming nitrogen is harmful to the environment and cotton requires higher nitrogen use, these risk management programs counteract federal environmental programs. The third essay uses a principal-agent model to examine the optimal contract design that induces the best effort from the farmer when crop insurance is purchased. With the introduction of crop insurance, the investor??s optimal equity financing contract requires that the farmer bear more risk in order to have the incentive to work hard, which is achieved by increasing variable compensation and decreasing fixed compensation.Item Intergenerational mobility in earnings in Brazil spanning three generations and optimal investment in electricity generation in Texas(Texas A&M University, 2008-10-10) Marchon, Cassia HelenaThis dissertation contains three essays. The first and second essays examine intergenerational mobility in earnings in Brazil using a data set spanning three generations. I use data from PNAD{a nationally representative household survey in Brazil. I build a three-generations data set consisting of 5,125 grandfather-father- son triplets by restricting the sample to households with adult sons. The first essay estimates some relationships between a child's earnings and family background implied by the Becker-Tomes model. I find that the estimates contradict some of its predictions, like the negative relationship between child's earnings and grandparent's earnings when controlling for parent's earnings. I propose a modified version of the Becker-Tomes model and find that the estimates are consistent with its predictions. I find that family background explains 34.9% of the variation in earnings among young males who live with their parents. If it were possible to eliminate the differences in investment in the children's human capital, the variation in earnings would fall by no more than 21.1%. Additionally, if there were no differences in endowments among children, the variation in earnings would fall by no less than 26%. The second essay examines the evolution of the intergenerational elasticity across generations and im- plications of marriage, education and fertility on mobility. I find that the estimate of the intergenerational elasticity in earnings is 0.847. The elasticity of earnings between son-in-law and father-in-law, 0.89, is approximately the same as the elasticity between son and father, 0.9. Additionally, controlling for fathers' percentile in the earnings distribution, each additional sibling decreases the sons' percentile by 1.77 percentiles. The third essay estimates an indicator of the optimal investment in electricity generation in Texas, and the associated efficiency gains. The essay presents a method to estimate the optimal investment in each technology available to generate electricity. The estimation considers the expected entry and exit of generation plants, future fuel prices, different demand elasticities and a potential carbon allowance mar- kets. Considering a carbon allowance price equal to two times the level in Europe, the optimal investment in electricity generation in Texas is zero.