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Structure and performance of Ethiopias coffee export sector
We study the structure and performance of the coffee export sector in Ethiopia, Africas most important coffee producer, over the period 2003 to 2013. We find an evolving policy environment leading to structural changes in the export sector, including an elimination of vertical integration for most exporters. Ethiopias coffee export earn-ings improved dramatically over this period, i.e. a four-fold real increase. This has mostly been due to increases in international market prices. Quality improved only slightly over time, but the quantity exported increased by 50 percent, seemingly explained by increased domestic supplies as well as reduced local consumption. To further improve export performance, investments to increase the quantities produced and to improve quality are needed, including an increase in washing, certification, and traceability, as these characteristics are shown to be associ-ated with significant quality premiums in international markets.
Robustness
The standard theory of decision making under uncertainty advises the decision maker to form a statistical model linking outcomes to decisions and then to choose the optimal distribution of outcomes. This assumes that the decision maker trusts the model completely. But what should a decision maker do if the model cannot be trusted? Lars Hansen and Thomas Sargent, two leading macroeconomists, push the field forward as they set about answering this question. They adapt robust control techniques and apply them to economics. By using this theory to let decision makers acknowledge misspecification in economic modeling, the authors develop applications to a variety of problems in dynamic macroeconomics. Technical, rigorous, and self-contained, this book will be useful for macroeconomists who seek to improve the robustness of decision-making processes.
Uncertainty Within Economic Models
Written by Lars Peter Hansen (Nobel Laureate in Economics, 2013) and Thomas Sargent (Nobel Laureate in Economics, 2011), Uncertainty within Economic Models includes articles adapting and applying robust control theory to problems in economics and finance. This book extends rational expectations models by including agents who doubt their models and adopt precautionary decisions designed to protect themselves from adverse consequences of model misspecification. This behavior has consequences for what are ordinarily interpreted as market prices of risk, but big parts of which should actually be interpreted as market prices of model uncertainty. The chapters discuss ways of calibrating agents' fears of model misspecification in quantitative contexts.
Technology Trap and Poverty Trap in Sub-saharan Africa
Since the industrial revolution, advances in science and technology have continuously accounted for most of the growth and wealth accumulation in leading industrialized economies. In recent years, the contribution of technological progress to growth and welfare improvement has increased even further, especially with the globalization process which has been characterized by exponential growth in exports of manufactured goods. This paper establishes the existence of a technology trap in Sub-Saharan Africa. It shows that the widening income and welfare gap between Sub-Saharan Africa and the rest of world is largely accounted for by the technology trap responsible for the poverty trap. This resu...
Slow Burn
How the subtle but significant consequences of a hotter planet have already begun—from lower test scores to higher crime rates—and how we might tackle them today It’s hard not to feel anxious about the problem of climate change, especially if we think of it as an impending planetary catastrophe. In Slow Burn, R. Jisung Park encourages us to view climate change through a different lens: one that focuses less on the possibility of mass climate extinction in a theoretical future, and more on the everyday implications of climate change here and now. Drawing on a wealth of new data and cutting-edge economics, Park shows how climate change headlines often miss some of the most important cost...
Leveraging Migration for Africa
This book seeks to fill knowledge gaps on migration, remittances and diaspora in Africa.
Experimental Political Science and the Study of Causality
Increasingly, political scientists use the term 'experiment' or 'experimental' to describe their empirical research. One of the primary reasons for doing so is the advantage of experiments in establishing causal inferences. In this book, Rebecca B. Morton and Kenneth C. Williams discuss in detail how experiments and experimental reasoning with observational data can help researchers determine causality. They explore how control and random assignment mechanisms work, examining both the Rubin causal model and the formal theory approaches to causality. They also cover general topics in experimentation such as the history of experimentation in political science; internal and external validity of experimental research; types of experiments - field, laboratory, virtual, and survey - and how to choose, recruit, and motivate subjects in experiments. They investigate ethical issues in experimentation, the process of securing approval from institutional review boards for human subject research, and the use of deception in experimentation.
Intangibles
This book is the first comprehensive, scientifically based study of the nature and impact of intangibles. Weaving case studies and real-world examples with contemporary business theory, Baruch Lev - establishes an economic framework to analyze managerial and investment issues concerning intangibles; - surveys the impact of intangibles on corporate performance and market values, including management difficulties, risk, questions of property rights, marketability, and cost structure; - analyzes information deficiencies associated with intangibles, including the major economic principles governing intangible investments, limits of management information systems, and recommendations for improved accounting disclosure; - sets forth a comprehensive information system—aimed at satisfying the needs of both internal and external decision makers—to reflect the impact and value of intangibles within the context of enterprise performance.
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Introduction to Development Engineering
This open access textbook introduces the emerging field of Development Engineering and its constituent theories, methods, and applications. It is both a teaching text for students and a resource for researchers and practitioners engaged in the design and scaling of technologies for low-resource communities. The scope is broad, ranging from the development of mobile applications for low-literacy users to hardware and software solutions for providing electricity and water in remote settings. It is also highly interdisciplinary, drawing on methods and theory from the social sciences as well as engineering and the natural sciences. The opening section reviews the history of “technology-for-dev...
