793 research outputs found

    The Dynamics of Job Creation and Job Destruction: Is Sub-Saharan Africa Different?

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    Agricultural production is an important source of income and employment for developing countries, yet it is the cause of serious environmental problems. Though ECO-labels appear as a promising alternative to control the negative effects of agriculture on the environment and to increase the income of rural poor, the proportion of agricultural land and exports certified as is quite small. We investigate the factors that affect the adoption of certified organic coffee in Colombia and in particular study the effect of economic incentives on adoption. We find that those who have lower cost of adoption are more likely to be certified as organic. Correcting for sample selection, we find that certified organic production is 40% less productive and 31% less costly than non-certified production. Given the price premium in 2007, certified organic production is 15% less profitable than non-organic production. We find that in order to make organic production attractive, the price premium of certified organic coffee should be about 5 times higher than in 2007. --Job Creation,Job Destruction,Job Reallocation,Firm Dynamics,Africa,Ethiopia

    Implications of the Multilateral Trade Agreement for Canadian Agriculture: A Computable General Equilibrium Evaluation

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    This study evaluates the impacts of the Uruguay Round Agreement (URA) on Canadian agriculture in a single-country general equilibrium framework. For this purpose a computable general equilibrium model of the Canadian economy that involves six agricultural and two non-agricultural sectors was constructed and calibrated on 1991 data. To assess whether Canadian agriculture benefits from the URA, two sets of anticipated changes in world prices, taken from studies of the global effects of the URA, were introduced into the model exogenously. The simulation experiments show that the minimum increases in world prices from global studies are too small to offset the negative effects on agriculture of the reductions in tariffs, export subsidies and domestic support. However, if world prices were to change by the maximum level of global projections, Canadian agricultural producers gain from the URA. The sectors that benefit the most are wheat, other grains, and processed foods, for which production and exports increase appreciably. Imports of milk and poultry products increase substantially and livestock sector imports also increase. Labour and capital demand increase in agriculture, particularly in the wheat and other grains sectors. The highest increase in factor returns in agriculture is for agricultural land. Since the export prices applied above are exogenously determined, a third experiment is conducted to determine the extent of the world price changes for agricultural exports that would offset the negative effects on sectoral domestic production of the URA policy commitments. This would require world prices that are about eleven per cent higher than in the base period for wheat and about ten per cent higher for other grains. The greatest increase in prices--by nearly thirteen per cent--would be required for the milk and poultry sector. More modest changes in world prices for the other agricultural sectors are needed to offset the impacts of the reductions in sectoral support necessitated by the URA. Most of these price changes lie within the ranges of world price projections from studies of the global effects of the URA.International Relations/Trade,

    The Dynamics of Job Creation and Job Destruction in an African Economy: Evidence from Ethiopia

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    A growing share of manufacturing in GDP and in employment is a common feature observed in successful developing countries. Manufacturing, however, has not been a major source of employment in Ethiopia and in other Sub-Saharan African countries. This paper relies on a unique census-based panel data covering the period 1996–2007 to analyse the micro-dynamics of aggregate employment changes. The analysis shows that the weak employment performance of Ethiopian manufacturing is not due to limited job creation but a consequence of simultaneous offsetting processes of job creation and destruction. We find strong evidence of intra-industry job mobility and attribute a substantial proportion of job creation and destruction to firm entry and exit. However, jobs created by small firms tend to be transitory and there has been a re-allocation of jobs from small to larger firms during periods of faster aggregate net employment growth. Overall, the evidence suggests that employment growth and job re-allocation are not necessarily restrained by labour laws and regulations

    Evaluation of genetic diversity in barley (Hordeum vulgare L.) from Wollo high land areas using agromorphological traits and hordein

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    This study aimed to determine the genetic diversity and relationships among barley varieties (Hordeum vulgare L.) growing at Wollo Highland areas by using hordein and agro-morphological traits. Twenty (20) varieties were laid down in randomized complete block design (RCBD) design with three replications; they were planted by irrigation at Wollo University, Dessie Campus from January to May 2014. The genetic analysis using hordein was done in the laboratory of Ethiopian Biodiversity Institute (EBI) in July 2014. Ten (10) competitive random plants from the rows of the experimental plots were taken for recording their agromorphological characters. Electrophoretic separation of barley storage proteins or hordeins was done using acid polyacrylamide gel electrophoresis (A-PAGE). The traits: day of heading, day of maturity, grain yield (kg/ha), plant height, spike length, number of spiklet per spike, kernel number per spike, weight of seed per spike and biomass yield (g/plot) were highly significant for the diversity of barely, whereas thousand seed weight was less significant. The results reveal positive correlation between spike length and number of spiklet per spike (the highest correlations from the agro morphological traits); the next highly correlated traits were kernel weight per spike and thousand seed weight. The A-PAGE analysis showed limited variation among the analysed accessions. The Nei’s genetic distance for all varieties of barely varied from 0.0000 to 1.6094. It is found that the 20 genotypes of barely investigated in this research were having a gene diversity (h) of overall populations (0.138) using hordein. The cluster analysis grouped the 20 barely genotypes into three different clusters using agro-morphological traits and into four clusters using hordein. This indicates the presence of wide diversity among the tested genotypes. From cluster mean values of agro-morphological traits, genotypes in cluster III deserve consideration for directly developing high yielding barely varieties. The result of the principal components analysis revealed that the first three principal components having greater than 1 eigenvalue contributed 84.22% of the total variation. From this study, it can be concluded that the presence of high morphological variation indicated the potential of Wollo Highland areas in contributing to barley improvement and conservation activities of land areas.Key words: Acid polyacrylamide gel electrophoresis, agro-morphological traits, hordein, genetic distance, hordeum vulgare, variability

    Work-related operating theatre accidents among surgical residents in Addis Ababa, Ethiopia

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    Background: With the Human Immunodeficiency virus (HIV) epidemic and infections with hepatitis B, C and D, occupational exposures to these infections is a cause of concern to all health care workers, especially those working in the operating theatre in low income countries.Methods: A cross-sectional study was conducted to investigate the prevalence and context of all work-related accidents that occurred as a result of contamination with blood and blood products, among surgical residents at the Black lion teaching specialized referral hospital, in Addis Ababa, Ethiopia. Data was collected from all 36 surgical residents who were at different stages of their specialty training in 2006/07.Results: Thirty two (88.9%) of the residents were males; 17 (47.2%) in their 3rd and 4th year, and the rest 19 (52.8%) were in their first and second year of training. Of the 36 respondents, 28(77.8%) had sustained a needle-stick injury inside the operating theatre at least twice during their residency (Range=2-10 times). For 13(36.1%), the accidents involved a high risk patient at least once. Cut with a sharp object, contact of blood to an unprotected skin and splash of blood to the eyes and face were reported by 11(30.6%), 27(75%) and 27(75%) of the respondents respectively. Information concerning the most recent occupational injury inside the operating theatre revealed that 31(86.1%) of the residents sustained work-related accident in the 6 months preceding the survey, 8(25.8%) of which involved a high risk patient. All of the 8 (100%) of the recent high risk injuries and 22(95.6%) of the non-high risk injuries were not reported to the hospital’s employee health service. The most frequently cited reasons for not reporting include; “The occupational health service doesn’t exist or I don’t know if it exists in the hospital” for 15 (50%), among others.Conclusions and Recommendations: Overall, the present study revealed that work-related accidents among surgical trainees constitute a substantial risk of acquiring and transmitting blood-borne infections which calls for well targeted educational and other preventive measures in the teaching hospital

    Levels and Trends of Occupational Hazards among Surgical Residents at Tikur Anbessa Hospital, Addis Ababa Ethiopia

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    Background: A previous study conducted four years ago among surgeons-in-training at the Addis Ababa University revealed that work-related  accidents among surgical trainees were enormous, and there was huge under reporting to the occupational health unit (OHU) of the hospital. The aim of this study was to evaluate the impact of the strengthened OHU of the hospital and what the current status of work-related accidents is like at the same hospital three years later.Methods: A cross-sectional study was conducted to investigate the  prevalence and context of all work-related accidents that resulted in contamination with blood and blood products inside the operating theatre, among surgical residents at the Tikur Anbessa teaching specialized referralhospital, in Addis Ababa University, Ethiopia. Data was collected from all 76 surgical residents who were at different stages of their specialty training in 2011.Results: Seventy- two (94.7%) of the residents were males and 26  (34.2%) were in their 3rd and 4th year of training. Of the 76 respondents, 53 (69.8%) had sustained a needle-stick injury inside the operating theatre at least once during their residency (Range=1-15 times). For 20 (26.3%), the accidents involved a high risk patient at least once. Cut with a sharp object, contact of blood to an unprotected skin and splash of blood to the eyes and face were reported by 9 (11.7%), 39(51.3%) and 28(36.9%) of the respondents respectively. Information concerning the most recent injuries inside the operating theatre revealed that 46(69.7%) of the residents sustained accidents in the 6 months preceding the survey, 7(9.2%) of which involved a high risk patient. All of the 7 (100%) of the recent high risk injuries and 10(27.7%) of the low-risk injuries were  reported to the OHU and all the high risk injury victims were commenced on HIV prophylaxis.Conclusions and Recommendations: Overall, the study revealed that work-related accidents among surgical trainees are still unacceptably high, even though there is a decline in the number of sharp object cut, and blood splash accidents. However, there is a positive trend towards reporting of injuries, particularly those which are high risk. More is expected from the hospital to create a safe working environment and to encourage reporting of all form of injuries

    Structural Studies of BaTiO3 Ferroelectric Material Prepared by Green Chemistry (Sol-gel) Method

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    Nano particle Barium Titanate (BT) is the first ferroelectric ceramics and a good nominee for a variety of applications from large family of Perovskite. In this study BaTiO3 was synthesised by using Sol-gel (green chemistry) method. It is environmental friendly method and has a significant influence on the structure and properties of BT. XRD patterns were indexed on the basis of tetragonal-BaTiO3 phase. The microstructure of the samples was investigated by using Scanning electron microscope (SEM). The grain size range was 90 nm for the dried gel powder for the powder calcined at . 1150°C. Infrared (IR) spectrum was recorded at room temperature. The absorption peak observed at 545 cm-1 found to be BT characterization peak

    The Gap between Surgical Resident and Faculty Surgeons Concerning Operating Theatre Teaching: Report from Addis Ababa, Ethiopia

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    Background: In a continent like Africa where the number of surgeons is alarmingly few, training of a large number of residents is the way forward. However, sudden expansion in the number of trainees in an existing teaching environment may bring the quality of the most fundamentaleducation i.e. operation room teaching into question.Method: We wanted to investigate the different perceptions of our surgeons-under-training and faculty concerning preoperative preparation, intra operative teaching and postoperative feedback. A validated questionnaire was administered to our surgical residents and faculty at the Addis Ababa University, School of Medicine, Department of Surgery. Results were analyzed with 2-sample t tests, comparing Likert scores. Findings were significant if the p value was < 0.05.Results: Forty residents (15 second year, 15 third years and 10 final years) and 30 faculty members completed the survey. With respect to preoperative preparation, faculty were significantly more likely to claim that residents’ preparation in terms of reading is low (3.77 vs 2.45; p=0.001) and anatomy review (3.73 vs 2.34; p=0.001) before the procedure. There was a very significant difference with regards to intra-operative teaching activities, i.e teaching of the operative steps (2.60 vs 3.79; p=0.048), instrument handling (2.30 vs 3.72; p=0.002), and surgical technique (2.23vs 3.83; p= 0.001). Residents’ perception of the effort of the faculty to act as a teacher in the operating room was significantly lower compared to the faculty (2.13 vs 3.94; p=0.002). Postoperatively, significant differences were found in perceptions of positive feedback (2.48 vs 3.86; p=0.01) and feedback on areas to improve (1.85 vs 3.34; p=0.001).Conclusion: There is a universal agreement on the need to improve the current residency training. However, the difference between resident and faculty in the teaching-learning process is alarmingly significant. As there is no substitute for the intra-operative training of residents, every effort must be made to not to trade off number of graduates with quality and  competence of surgeons-under-training.  Keywords: Resident, Surgeons, Operating, Theatre, Teachin

    Analysis of production costs, market opportunities and competitiveness of Desi and Kabuli chickpeas in Ethiopia

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    This study was conducted to examine the existing conditions of chickpeas in relation to production and marketing and outlines the major technological and institutional constraints for harnessing market opportunities in the chickpea sub-sector. The study determines variety introduction, market conditions and seed delivery systems in Ada'a-Liben woreda. This district is one of the major chickpea growing areas in which new market-preferred and high-value Kabuli types are being tested and promoted. Section two of this paper presents the research process and methods. This is followed by discussion of production trends, available technologies, costs and opportunities for chickpeas. An overview of the structure and organization of the chickpea marketing system is given in section four. Section five presents market conditions with emphasis on opportunities for Kabuli exports, quality requirements, grading systems, competitiveness of smallholder producers, and existing potentials in domestic markets. The final section summarizes the key findings and highlights issues for policy and future research
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