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Patterns of correlation in innovation and contractual practices among manufacturing firms in Ethiopia and Sudan are documented. Network data that indicate whether any two firms in the utilized sample do business with each other, buy inputs from a common supplier, or sell output to a common client are used for the analysis. Only limited support is found for the commonly held idea that firms that are more proximate in a network sense are more likely to adopt similar practices. Indeed, for certain practices, adoption decisions appear to be local strategic substitutes: if one firm in a given location uses a certain practice, nearby firms are less likely to do so. These results suggest that the diffusion of technology and new business practices may play a more limited role in spurring growth in Africa's manufacturing sector than is often assumed in the present policy discussion.

Business practices --- Macroeconomics and Economic Growth --- Manufacturing firms --- Networks --- Technology diffusion --- Africa

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Using a large administrate dataset covering the universe of phone calls and airtime transfers in a country over a four year period, we examine the pattern of adoption of airtime transfers over time. We start by documenting strong network effects: increased usage of the new airtime transfer service by social neighbors predicts a higher adoption probability. We then seek to narrow down the possible sources of these network effects by distinguishing between network externalities and social learning. Within social learning, we also seek to differentiate between learning about existence of the new product from learning about its quality or usefulness. We find robust evidence suggestive of social learning both for the existence and the quality of the product. In contrast, we find that network effects turn negative after first adoption, suggesting that airtime transfers are strategic substitutes among network neighbors.

Zonder onderwerpscode: economie

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This paper compares and contrasts the performance of rural and urban manufacturing firms in Ethiopia to assess the impact of market integration and the investment climate on firm performance. Rural firms are shown to operate in isolated markets, have poor access to infrastructure and a substantial degree of market power, whereas urban firms operate in better integrated and more competitive markets, where they have much better access to inputs. Fragmentation may also help explain why urban firms are much larger, much more capital intensive and why they produce much more output per worker. Capital intensity and labor productivity are strongly correlated with firm size. Manufacturing technology choice does not vary strongly across space and increasing returns to scale are modest at best, suggesting that rural-urban differences in output per worker are predominantly driven by differences in capital intensity and Total Factor Productivity (TFP). The average TFP of firms in rural towns is much higher than that of rural firms in remote areas, but small firms in rural towns are not significantly less productive than small firms in other urban areas. A key finding of the paper is that market fragmentation and investment climate constraints impair the growth of the rural non-farm sector. Whereas urban firms exhibit a healthy dynamism, rural firms are stagnant and lack incentives to invest. Paradoxically, limited local demand due to market fragmentation is the most pressing constraint for rural firms, even though they face more severe supply-side constraints than urban firms. Promoting market towns in Ethiopia might be an effective means of capitalizing on the gains from market integration.

Access to Finance --- Access to finance --- Banks and Banking Reform --- Commercial finance --- Debt Markets --- Diversification --- E-Business --- Economic activity --- Economic development --- Economic Theory and Research --- Economies of scale --- Employment opportunities --- Enterprise growth --- Farm enterprise --- Farm enterprises --- Finance and Financial Sector Development --- Financial services --- Financial support --- Foreign investment --- Group of firms --- Infrastructure Economics and Finance --- International bank --- Investment and Investment Climate --- Labor and Social Protections --- Labor Policies --- Macroeconomics and Economic Growth --- Microfinance --- Overdraft --- Poor access --- Private Participation in Infrastructure --- Private Sector Development --- Rural Development --- Rural Poverty Reduction --- Small enterprises --- Transaction costs --- Urban areas

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"In the early 1990s the World Bank launched the Regional Program on Enterprise Development in several African countries, a key component of which was the collection of manufacturing firm-level data. In this paper the authors review the research based on the data sets generated by these and subsequent firm surveys in Africa, with a special view to what they think are the most important policy implications. The authors survey the research on the African business environment, focusing on market size, risk, access to credit, labor, and infrastructure. They cover the research on how firms choose to organize themselves and how firms do business. They review the research on firm performance, including firm growth, investment and technology acquisition, and exports. They conclude with an extended discussion of the policy lessons. "--World Bank web site.

Business enterprises

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"By developing a simple theoretical model of the impact of market integration on sectoral output and employment in a poor rural setting, this paper demonstrates that trade can induce asymmetric growth. Under certain, plausible, assumptions, the non-farm sector will grow much faster than the agricultural sector when markets become integrated. Promoting market integration may thus be an effective way of encouraging diversification beyond agriculture and catalysing structural change in poor rural economies. "--World Bank web site.

Rural development.