Civil wars, insecurity, and ethnic disputes have imposed a high human and economic toll in Africa. In this dissertation, I examine the destructive impacts of war on agricultural productivity growth across the continent. Poor agricultural sector performance is more likely to be present around or during times of conflict. Using a panel of 51 countries from 1962-2009 I find that war impedes agricultural productivity growth. But a decline in productivity growth is not associated with the onset of civil war. Results show that low per capita income, stagnant economic growth, a large population, and lack of political freedom correspond to higher incidence of war, while conflict and lack of rainfall are associated with low agricultural productivity growth. I find that armed conflict reduces agricultural productivity growth by 0.76 percent per year and a major armed conflict reduces TFP growth by 1.16 percent. The incidence of a major armed conflict is associated with an efficiency decline in the year by 1.24 percent, substantial setback, for more than three-quarters of countries. This dissertation extends the discussion from productivity and efficiency analysis to the inclusion of the spatial dimension by applying exploratory and confirmatory spatial data analysis and capitalizing on successful spatial techniques and analytical tools proven in geospatial science. The exploratory spatial data analysis provides evidence of spatial autocorrelation in agricultural TFP growth rates in Africa. The results of hot spot analysis reveal that Algeria, Tunisia, Libya in the northern region and Nigeria and Benin in the western region constitute hot spots of agricultural performance and the cold spot, which includes areas of meager productivity, Rwanda and Burundi in central Africa. Africa suffers substantial losses in agricultural productivity when certain countries experience major armed conflict. The dissertation shows that a war may reduce productivity in a given country, but its real effects are larger because it impacts surrounding countries. Overall African TFP declined by 0.0572 percent per year as a result of conflict in Sudan. A war in the Democratic Republic of Congo caused African TFP growth to decline by 0.0285 percent per year.

No description available.

A agropecuária brasileira tem crescido nas últimas décadas e os ganhos de produtividade tem sido importante neste bom desempenho do setor. O presente trabalho tem dois objetivos principais. O primeiro deles foi mensurar o crescimento desta produtividade total dos fatores na agropecuária brasileira estadual, decompondo o crescimento da PTF em progresso tecnológico e eficiência técnica. O segundo objetivo foi analisar o efeito do crescimento da PTF da agropecuária brasileira sobre os preços agrícolas, no Brasil, de 1970 a 2006. O crescimento desta produtividade foi mensurado a partir dos insumos terra, trabalho e capital na função de produção translog sob orientação do produto, a partir do método de Fronteira Estocástica de Produção e do índice de produtividade de Malmquist. Para avaliar o efeito do crescimento da PTF sobre os preços agrícolas foi construído o índice de preços agrícolas utilizando-se o Índice de preços de Laspeyres para estimar o vetor autoregressivo em painel (panel- VAR), acrescentando as variáveis produtividade total dos fatores (PTF), salário rural, financiamento agrícola e renda per capita domiciliar. Além disso, foi aplicado o teste de causalidade, no sentido de Granger, e estimada a função impulso resposta. A base de dados utilizada foi, obtida do Censo Agropecuário, a nível estadual, para os anos de 1970, 1975, 1980, 1985, 1995 e 2006. Os resultados indicaram que a taxa de crescimento da PTF foi crescente no Brasil e nos estados, sendo que, na maior parte das vezes, é explicada pelo progresso tecnológico, positivo e crescente para todos os estados. A eficiência técnica variou ao longo dos anos, apresentado taxas de crescimento médias positivas para a maioria dos estados. Em média, os estados estiveram situados abaixo da fronteira de produção da agropecuária brasileira. São Paulo foi o estado com maior nível de eficiência técnica. Embora a taxa de crescimento médio anual tenha sido positiva ao longo do período analisado, a eficiência reduziu para todos os estados analisados em 2006. Da análise dos efeitos do crescimento da PTF sobre os preços agrícolas, a PTF tem causalidade, no sentido de Granger, sobre os preços agrícolas. Na função impulso resposta, o choque inicial na variável PTF reduziu os preços nos primeiros anos. Assim, o crescimento da PTF do setor agropecuário contribuiu para o aumento da oferta de produtos, reduzindo os preços agrícolas. A maior disponibilidade de alimentos e, com a redução dos preços dos alimentos, os consumidores, principalmente os de renda mais baixa puderam ter maior acesso aos alimentos. / The Brazilian agriculture has grown in recent decades and productivity gains have been important in this good performance of the sector. This work had two main objectives. The first one was measure the growth of this total factor productivity in agriculture by the Brazilian\'s states, decomposing TFP growth by technological progress, technical efficiency and economies of scale. The second objective was to analyze the effect of TFP growth of Brazilian agriculture on agricultural prices. The growth in productivity was measured from the inputs like labor, gross and capital in the translog production function, from the Stochastic Frontier Analysis and of the outputoriented Malmquist productivity index. To analyze the effect of TFP growth on agricultural prices was constructed an index of agricultural prices through the Laspeyres price index to estimate the vector autoregressive panel (panel-VAR) and establish the relationships between TFP, rural wages, agricultural finance and income per capita household. The Granger causality test and the impulse response function were used to the data panel. The database used obtained from the Agricultural Census, at the state level for the years 1970, 1975, 1980, 1985, 1995 and 2006. The results showed that the growth rate of TFP has been growing in Brazil and in the states, and technological progress explained most of the growth being positive and growing for all states. Technical efficiency varied over the years, presented positive average growth rates for most states. The states were located below the production frontier of Brazilian agriculture and São Paulo was the state with the highest level of technical efficiency. Although the average annual growth rate has been increasing over the period analyzed, the efficiency decreased to all state analyzed in 2006. The results also showed that TFP growth has causality in the sense of Granger, on agricultural prices. In the impulse response function, the initial shock in TFP decreased prices in the early years. Thus, TFP growth of the agricultural sector contributed to the increased supply of agricultural products, reducing agricultural prices. The greater availability of food and with reducing food prices, consumers, especially those from lower income might had greater access to food.

Faculty research productivity studies typically focus on the scholarly performance of the individual researcher, although environmental and organizational conditions that are largely outside of the researcher’s control can significantly impact that performance. From an institutional effectiveness perspective, it is imperative for the higher education administrators and leaders who share the responsibility of managing and supporting their university’s research enterprise to understand how the institutional environment itself impacts the productivity of its research community. In this sequential mixed methods study, a quantitative framework was tested for assessing institutional effectiveness in research administration based on the assertion that this concept can be measured indirectly, at the departmental level, based on the calculation of a program’s residual scholarly output. This is the difference between the actual amount of scholarly output a program produces compared to the predicted amount of scholarly output that its resources suggest it is capable of producing. The assumption is that the institution’s effectiveness in supporting research is largely reflected by the extent to which a program over- or under-produces scholarship based on its level of resources. The residual scholarly output was calculated for each Ph.D.-granting biomedical engineering program in doctoral universities with a Carnegie classification of “highest research activity” for the period of 2014 through 2016. A sampling of those programs that achieved among the highest and lowest residual productivity levels then became the subject of a qualitative inquiry where researchers and administrators were interviewed with two goals in mind. The more ostensive goal was to reveal what factors, characteristics, resources, and conditions distinguish under- and over-producing programs for the purpose of informing best and worst practices in research administration. Equally important, the second goal was to determine if the quantitative framework was actually successful in distinguishing institutional effectiveness in supporting research. The study concludes that the quantitative framework proved to be a successful method for detecting institutional effectiveness in supporting research, and that the primary distinguishing characteristic between high and low-functioning environments was how well programs were able to reduce the general administrative burdens that researchers face, particularly in grant management and the operation of research laboratories.

<p>In this dissertation I study substantially the effects of disembodied technical change on the total factor productivity and inputs demand in U.S. Apparel industry during 1958-1996. A time series input-output data set over the sector employs to estimate an error corrected model of a four-factor transcendental logarithmic cost function. The empirical results indicate technical impact on the total factor productivity at the rate of 9% on average. Technical progress has in addition a biased effect on factor augmenting in the sector.</p>

Unemployment and/or slow economic growth nationally and in poorer regions are two problems which political decision-makers often refer to when they argue for the need to grant different producer subsidies to firms. Moreover, it is often asserted that the problems are due to different market failures. However, it is not certain that market failures exist and political attempts to correct "market-failures" might easily turn into government failures. In the thesis various industrial and regional policy subsidies are examined. The subsidies, which are studied, have become increasingly important in many countries, not least in the EU, over time.The thesis consists of four essays, which examine different aspects of interventionistic policy and political decision making from the perspective of market failure vs. government failure. The purpose of Essay 1 is to study whether Swedish regional policy, which was introduced around 1970, has significantly affected the process of growth of per capita income in Swedish counties. In Essay 2 characteristics of recipient firms are analysed from an interest-group perspective. In Essay 3, the subsidies effect on total factor productivity growth is studied. In the final essay employment effects are examined. / Diss. Stockholm : Handelshögsk.

In this dissertation I study substantially the effects of disembodied technical change on the total factor productivity and inputs demand in U.S. Apparel industry during 1958-1996. A time series input-output data set over the sector employs to estimate an error corrected model of a four-factor transcendental logarithmic cost function. The empirical results indicate technical impact on the total factor productivity at the rate of 9% on average. Technical progress has in addition a biased effect on factor augmenting in the sector.

No description available.

Over that past three decades, power sector reform has been a key pillar of policy agendas in more than half of the countries across the world. This thesis specifically concerns the empirical investigation of the economic performance of the international electricity generation industry. Drawing on the stochastic frontier analysis techniques, the thesis considers the influence of reform as exogenous factors in shifting frontier technology as well as shaping inefficiency function directly -determinants and heteroscedasticity variables. The first essay uses an extensive panel dataset of 91 countries over the period 1980 to 2010 to measure the impact of deregulation on efficiency and total productivity growth using stochastic input distance frontier (SIDF). Three specific issues are addressed in the first essay: (1) the relationship between deregulation and technical efficiency, (2) the extent of the rank correlation of the country intercepts with deregulation via their position on the frontier, (3) the trend of total factor productivity and its components. We establish a positive impact of deregulation on efficiency and some compelling evidence suggesting that the country intercepts equally account for the influence of deregulation aside efficiency. In particular, the technical efficiency index from the first paper reveals that most OECD European countries are consistently efficient. Building on this finding, the second essay investigates the performance in term of cost efficiency for electricity generation in OECD power sector while accounting for the impact of electricity market product regulatory indicators. Empirical models are developed for the cost function as a translog form and analysed using panel data of 25 countries during the period 1980 to 2009. We show that it is necessary to model latent country-specific heterogeneity in addition to time-varying inefficiency. The estimated economies of scale are adjusted to take account of the importance of the quasi-fixed capital input in determining cost behaviour, and adjusted economies of scale are verified for the OECD generation sector. The findings suggest there is a significant impact of electricity market regulatory indicators on cost. Cost complementarity between generation and emissions found to be significant, indicating the possibility of reducing emissions without necessarily reducing electricity generation. Finally, the third essay examines the performance of electric power industry s using consistent state-level electricity generation dataset for the US contiguous states from 1998-2014. We estimate stochastic production frontier for five competing models in order to identify the determinants of technical inefficiency and marginal effects. We find evidence of positive impacts of deregulation on technical efficiency across the models estimated. Our preferred model shows that deregulated states are more efficient in electricity generation than non-deregulated states. The result of the marginal effects shows that deregulation has a positive and monotonic effect on the technical efficiency.

A década de 1990 foi marcada por importantes transformações de caráter estrutural ocorridas no ambiente econômico e institucional brasileiro que estiveram ligadas tanto ao novo conjunto de políticas macroeconômicas adotado, quanto à implementação de reformas de cunho liberalizante. O objetivo das medidas adotadas era de estabelecer condições para a retomada do crescimento da economia, de forma a que a crise da década anterior fosse superada. Apesar de um grande salto no crescimento não ter sido observado, houve uma relativa recuperação das taxas de crescimento na década de 1990 e no início dos anos posteriores. Com foco nas reformas liberalizantes que foram implementadas, esta dissertação procura investigar a maneira e os meios pelos quais as mudanças verificadas nas principais áreas reformadas geraram impacto sobre o desempenho econômico do país. Para tanto, utiliza-se dois referenciais teóricos: (i) a nova economia institucional, que fornece o substrato para a interpretação do caráter institucional das reformas; e (ii) a teoria de crescimento econômico com base nos modelos de crescimento neoclássicos, que permitem a investigação empírica acerca dos efeitos das reformas sobre a taxa de crescimento da economia. A análise empreendida verificou, primeiramente, que, de acordo com o exercício de decomposição da taxa de crescimento realizado para o período considerado de 1960 a 2005, o elemento cuja variação mais contribuiu para a variação da taxa de crescimento dos anos em questão foi a produtividade total dos fatores descontada da fronteira tecnológica (PTFD). Com base neste resultado, realizou-se a aplicação de um modelo econométrico em que a PTFD foi a variável dependente e os índices de reforma construídos as variáveis explicativas. O resultado final a que se chegou mostrou que apenas a abertura comercial e a reforma do setor financeiro nacional, dentre as quatro áreas reformadas aqui consideradas, estiveram associadas ao comportamento da PTFD no período analisado, especialmente na década de 1990, indicando que um meio pelo qual essas duas reformas geraram impactos sobre a taxa de crescimento da economia parece ter sido a PTFD. / The 1990's were characterized by important structural changes in the economic and institutional Brazilian environment, and these changes were associated to a new macroeconomic policy regime and to the implementation of economic reforms based on a liberal set of rules. The main objective behind the measures that were taken was to establish basic conditions to foster economic growth rate recovery. Although a great increase in the growth rate had not been verified, there was a relative recovery of the economic performance in the 1990's and in the beginning of following years. This thesis focus on the analysis of liberalization reforms implemented in the 1990's, and investigates the ways through which they had affected economic growth in Brazil. In this way, the study was build upon two theoretical bases: (i) the new institutional economics, which gives us the substratum to the interpretation of the institutional nature of reforms; and (ii) the economic growth theory on the bases of neoclassical growth models, which allows the empirical inquiry concerning the impact of the reforms on the rate of economic growth. The undertaken analysis in this research has shown, first of all, that, in accordance to the growth rate decomposition exercise, carried out through the years of 1960's to 2005, the element whose variation rate had most significant contribution to the variation of growth rate was the total factor productivity discounted by the technological frontier (TFPD). Based on this preliminary result, the econometric analysis took into account a model in which TFPD was the dependent variable, and the structural reforms indicators the independent variables. The final result showed that only opening trade and financial reforms, amongst the four reformed areas considered in this study, had been associated to the behavior of TFPD in the analyzed period, especially in the 1990's, indicating that the way through which these two reforms had affected the economic performance seems to have been the TFPD.