Cereal Crop Productivity in Developing Countries: Past Trends and Future Prospects

This paper synthesizes the evidence on cereal crop productivity in developing countries over the past 30 years and looks at future prospects for productivity growth. For more than three decades we have witnessed the phenomenal growth of cereal crop productivity in the developing world. Termed the Green Revolution, the initial phase of this growth resulted from an increase in land productivity and occurred in areas of growing land scarcity and/or areas with high land values. Significant investments in research and infrastructure development, especially irrigation, were the strategic components of this increased productivity. In the post-Green Revolution period, particularly in Asia, productivity growth has been sustained through increased input use and, more recently, through more efficient use of inputs. Lately, however, indicators show a decrease in the growth rate of productivity of two of the three primary cereals, rice and wheat. The first two sections of this paper present trends on cereal crop productivity in developing countries over the last three decades. Supporting evidence includes yield and other partial factor productivity trends and a summary of studies on total factor productivity. The third section speculates on the prospects for future growth.Crop Production/Industries,

Labor markets in the global economy: how to prevent rising wage gaps and unemployment

The strikingly different labor market performance of major industrial countries suggests that neither globalization nor skill-biased technological change necessarily result in rising unemployment or declining wages of low-skilled workers. Rather, globalization and technological change cause labor market problems in those economies that fail to adjust sectoral production structures in accordance with their comparative advantages. Labor market outcomes in Germany  especially when compared with the United States  suggest that high unemployment is the price for insufficient wage flexibility. However, the experience of Japan and the United Kingdom points to missing links in the debate on labor market effects of globalization and skill-biased technological change. In Japan, both unemployment and wage disparities remained low. The contrasting experience is provided by the United Kingdom, where the rising wage gap did not prevent high unemployment of low-skilled workers. All major industrial countries have been confronted with fiercer import competition and outsourcing in low-skill labor-intensive industries. But the response to this common challenge has different remarkably. Japan has outperformed its major competitors in restructuring manufacturing employment towards more sophisticated lines of production, and in achieving an appropriate pattern of trade specialization. Hence, structural change is the key to avoid labor market problems in the era of globalization. Different labor market outcomes are closely related to differences in the rate of factor accumulation, which comprises physical, human and technological capital. Especially industrial countries currently plagued with high unemployment have little choice but to forego consumption today in order to improve future real incomes and employment opportunities of lowskilled workers. Thus, successful structural change does not come for free. --

The production and diffusion of policy knowledge

"The published works of the International Food Policy Research Institute (IFPRI) represent the most immediate and tangible measure of the new policy-related knowledge attributable to the institute, its staff, and research partners. This study provides a quantitative assessment of the number, nature, form, and use of IFPRI's published products since 1979 and compares and contrasts that with the publication performance of several similar agencies, including the economics and social sciences programs of the Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) and the International Rice Research Institute (IRRI) respectively, the Australian Bureau of Agricultural and Resource Economics (ABARE), the Bangladesh Institute for Development Studies (BIDS), and the now defunct Stanford University Food Research Institute (SFRI). Overall, IFPRI's circulated output is extensive, published not only in a broad portfolio of leading scholarly journals, but also in a wide range of books, technical reports, and extension documents. The amount of published output has tended to increase throughout IFPRI's history, and it continues to do so. Going beyond counting and classifying IFPRI's published record, we report the results of a bibliometric assessment of IFPRI and the comparison institutes for the period 1981–96 using the publication and citation performance details recorded in the Institute for Scientific Information's (ISI) Science Citation Index and Social Science Citation Index data bases. Citations to published literature are not indicative of an impact on policy or the economy generally but on further research and analysis. An analysis of coauthorship patterns provides an indication of impact too (more directly through the conduct of joint research), as well as indications of the way the research is carried out. Our analysis reveals the role IFPRI plays as a knowledge intermediary between the scholarly community and policy clienteles, but that a high proportion of its research collaborations leading to formal publications (and especially publications in the leading journals covered in ISI's data bases) involve researchers in advanced agencies. This partly reflects the limited capacity to perform food policy research in many developing countries — itself a reflection of local priorities for education and limited, long-term international support to increase scientific capacity in developing countries — and also underscores the role IFPRI could, and arguably should, play in redressing this state of affairs." Authors' AbstractInternational Food Policy Research Institute History ,Research institutes Evaluation ,Communication in learning and scholarship ,Bibliometrics ,Information science Statistical methods ,Knowledge management ,International Food Policy Research Institute Communications systems Evaluation ,Food policy Research ,

An overview of the main Tunisian scientists in Chemistry and Materials Science

Abstract In this research paper, a ranking of the 61 main Tunisian scientists in chemistry and materials science working in Tunisia and abroad is provided. It is clearly seen that 37 out of 61 scientists are working in Tunisia and this is explained by the tendency of Tunisian universities having to work on interdisciplinary research that is known for providing more citations than theoretical and applied research. However, the performance of the Tunisian main scientists working abroad appears superior to the one of the local Tunisian main scientists. This is explained by the better conditions of research offered outside Tunisia and maybe by a deficiency in their choice of international collaboration. A new policy should then be elaborated to improve the organization of such research collaborations and let them more fructuous

The First Hundred Years of the Bureau of Labor Statistics

[Excerpt] This volume reports on the first century of a government agency whose founders hoped that, by publishing facts about economic conditions, the agency would help end strife between capital and labor. The Bureau\u27s early work included studies of depressions, tariffs, immigrants, and alcoholism and many assignments to investigate and mediate disputes between labor and management. Most of these functions- especially those involving formulation of policy- passed on to other agencies. The Bureau today remains one of the Nation\u27s principal economic factfinders. In writing the book, Drs. Goldberg and Moye had full freedom to interpret events in accordance with their judgments as historians, without conformance to an official view of institutional history. Given the perspective made possible by passing years, the authors offer broader evaluations of the Bureau\u27s early history than of contemporary events

The Contribution of Genetic Resources and Diversity to Wheat Productivity: A Case from the Punjab of Pakistan

This study makes use of data on wheat production in the Punjab of Pakistan from 1979 to 1985 to 1) examine patterns of varietal diversity in farmers' fields both at the regional and district levels and 2) identify how and in what ways genetic resources have contributed to wheat productivity and yield stability-important considerations to farmers and national authorities where wheat is a staple food crop. Five indicators are used to describe the system of wheat genetic resource use and diversity in farmers' fields. The contribution of farmers' previous selections is expressed as the number of different landraces appearing in the pedigree of a cultivar . The contribution of scientific breeding efforts is expressed as the number of parental combination appearing in a cultivar's pedigree. The diversity of wheat varieties in a geographical area, as related to productivity, is captured by measures of area concentration (diversity in space) and age of varieties (diversity in time). Finally, the relative dissimilarity of cultivars grown in a geographical area is measured using a distance indicator constructed from genealogical information. Disaggregated analysis at the district level demonstrates how diversity patterns are influenced by the production environment and by possible differences in the availability of suitable varieties. The study finds no indication that modern plant breeding technologies have reduced diversity among the wheats grown in the districts of the Punjab of Pakistan during the study period, although brief. Analysis of the genealogical background of the varieties grown by farmers reveals patterns of greater use of genetic resources and dissimilarity of parentage. For some factors related to genetic resource use and diversity, there are large differences between production environments (specifically, irrigated and rainfed areas) and individual districts, which suggest that efforts to increase genetic diversity in farmers' fields will require policy instruments tailored to the individual circumstances of each production environment. Econometric results suggest that greater genealogical dissimilarity and higher rates of varietal replacement are likely to have positive payoffs relative to aggregate yield stability, while in areas where production constraints inhibit farmers' ability to exploit the yield potential of their varieties, better production management is likely to have greater yield enhancing effects than the varietal attributes related to diversity.Crop Production/Industries,

The Influence of Scientific Claims on an Emerging Environmental Issue

The environmental movement relies on scientific claims to justify its calls for protectionist policies. These claims can be followed in the scientific literature using bibliometric methods such as citation analysis. Citation analysis was used to deconstruct the literature of endocrine disrupting chemical (EDC) sciences as it emerged and developed time from 1980 through 2004. This study explored how the attributes of scientific papers such as topic, journal, experimental model, document type, and support or negation of hypotheses impacted their influence (quantified as times cited) within the field over time. To accomplish this, unique bibliographic data were acquired for each attribute of the more than 3,400 studies identified by keyword searches. Content-specific data (non-bibliographic) were generated for the nearly 500 articles cited \u3e 45 times. The influence of individual articles on the field of EDC science, and their citation relationships was also visually represented using the bibliometric mapping. Results demonstrated that a confluence of scientific claims propelled the EDC issue into a prominent position within overall environmental literature. The EDC term appeared nowhere before 1993, but its use rapidly gained traction thereafter until by 2004 it was found in over 3,400 published papers. The results of this study suggest that the influence of individual scientific claims within the literature of EDC science were not random, but were impacted by both bibliographic and non-bibliographic attributes. Temporal variations in the influence of each attribute were also demonstrate