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1.
This study develops two-level hierarchical model that identifies factors that favor or hamper the use of Internet in Africa. We used data from a survey covering 17 African countries. Our results confirm that urbanization and the spread of Internet infrastructures play an important role in individual decisions to adopt this technology. They also reveal that an individual will have a larger probability to use Internet if he/she has at least completed primary education.Moreover, individual characteristics such as sex, age, level of education, and a social network membership greatly influence Internet adoption. Indeed, men are more likely to use Internet than women; this probability is larger if they are young (16–30 years old) or if they attained at least secondary education level or if they are members of a social network.  相似文献   
2.
We use DNA‐fingerprinting to estimate the poverty reduction effect of adoption of improved cassava varieties in Nigeria. We estimate the counterfactual household income distribution of cassava producers by combining farm‐level treatment effects with a market‐level model. Our results suggest that adoption of improved cassava varieties has led to a 4.6 percentage point reduction in poverty, though this is sensitive to the measurement of adoption status. Therefore, accurate measurement of adoption is crucial for a more credible estimate of the poverty reduction effect of adoption. Our analysis also suggests that farmers who are more likely to be adopters are also likely to face higher structural costs. Addressing structural barriers that make improved technologies less profitable for the poor would therefore be important to increase the poverty reduction effect of improved cassava varieties.  相似文献   
3.
Promoting youth and female entrepreneurship is crucial to inclusive growth and the future economic and social prospects of developing countries. Evidence tends to suggest that young and female entrepreneurs are in a minority, and the extent and generating mechanisms of this outcome tend to be country‐specific. This collection of papers brings together recent empirical contributions exploring key drivers of this heterogeneity entrepreneurial propensity of youth and female in the context of a group of countries in Africa, Latin America, and the Middle East, paying special attention to the role of and issues relating to access to credit, attitudes to risk, and migratory status. A common thread in all the papers is the effective role of risk, uncertainty, and asymmetric information in the determination of entrepreneurship and in the demand for and allocation of credit when potential entrepreneurs are from specific groups, that is, women, indigenous women, women and youth in conflict and post‐conflict situations, and migrant youth. Based on these results, the papers explore various challenges in the implementation of public policies designed to promote entrepreneurship within these specific segments of the population.  相似文献   
4.
Fertilization is a stepwise decision in Niger. Survey data from a representative sample of 100 households were utilized with individual and joint estimation to evaluate the determinants of fertilizer use at its three different stages: manure alone and two different types of inorganic fertilizer application. The fertilizer price relative to the millet price was always a highly significant determinant of fertilizer adoption. Farmers' experience in seeing the results of fertilization in the field was a principal factor influencing the use of manure and of the micro‐fertilization. Other studies in semiarid regions have emphasized risk, liquidity, or fertilizer responsiveness under harsh conditions but the shift to the micro doses of inorganic fertilizer was statistically associated here with the demonstration trials and the price ratios (fertilizer/millet). A variable reflecting the millet price recovery approximately 6 months after harvest was the most important factor in the decision to raise further inorganic fertilizer use with side dressing. Policy implications were focused on the importance of demonstration trials and improvements in the economic conditions (millet–fertilizer price ratios).  相似文献   
5.
Résumé: Ce papier passe en revue les raisons d'investir dans le capital humain dans un pays en développement, évalue les performances accomplies au cours des ann ées 1990 et 2000 en matière d'éducation et de santé, particulièrement dans les pays africains, et soumet à une analyse critique les réformes de politiques qui ont sous‐tendu ces performances. Les contraintes et opportunités offertes par la mondialisation sont examinées dans le contexte des pays africains. Enfin, des recommandations sont faites pour accélérer l'accumulation d'un capital humain de qualité en Afrique à travers l'éducation et la santé.  相似文献   
6.
This article estimates how storage losses from mold, insects, and other pests, combined with liquidity constraints, influence a smallholder farm household's decision to store maize on farm after harvest. We analyze panel data from 309 smallholders in Benin covering the 2011 and 2013 harvest seasons. Results suggest that smallholders are driven to sell at harvest time for different reasons, depending on their motivation for storing. In households that report direct consumption as their primary goal for storing maize, liquidity constraints, not storage losses, reduce the amount they store. In contrast, households that store maize with the intention of selling it later in the year appear unaffected by liquidity constraints. Instead, these households store less when they expect to lose more during storage. These results suggest that policies to provide liquidity will be more helpful in motivating storage among consumption‐oriented households. Households motivated to store for later sale will benefit from modern storage technologies that mitigate the operational costs associated with storage losses.  相似文献   
7.
This paper comprehensively examines price transmission from world, neighbour country, and internal commercial hub markets to Nigerian urban markets, as well as from urban to rural markets within the country, for seven key food security crops (maize, millet, sorghum, rice, cassava, yams and cowpeas). There are three key findings: (i) tradability matters for price transmission, but tradability varies across crops and regions. The strongest international linkages are with neighbouring countries. Rice price transmission is high across all markets, while coarse grain price correspondence is low with world prices but high with neighbour country market prices; (ii) our results imply that local conditions matter for price transmission, and are relatively more important than trade for some crops (e.g. yams, cassava) than others (e.g. imported rice, maize); (iii) larger than expected long‐run price transmission parameters in world and neighbour countries for rice and coarse grains suggest that, in these select markets, there are either large transactions costs or quality premiums that vary systematically with border prices, and/or mark‐ups captured by traders with market power.  相似文献   
8.
This paper tackles one of the most complex and multifaceted agricultural policy decisions faced by African governments; that is, whether it makes sense to subsidise fertilisers. It combines a data envelopment analysis to compute efficiency scores and regression analyses that deal with self‐selectivity and endogeneity issues to examine the productive efficiency of farmers who benefited from the subsidy programme in the very atypical irrigated system of the Senegal River Valley. The results based on farm‐level data indicate that the subsidy programme seems to be working, as it appears to be associated with increased efficiency; hence, providing empirical support to the political will to revamp subsidy programmes. The results also suggest various ways to improve the effectiveness of the subsidy programme in conjunction with additional policy options to further unlock the agricultural potentials of the region.  相似文献   
9.
An agent based model (ABM), where each agent makes decisions by using the sum of two signals, is proposed. The first is related to the fundamental information while the second comes from trader’s idiosyncratic noise. This model entails the switching between two groups called fundamentalist and noise traders. Additionally, if the price impact function is log-linear, then the dynamic of log asset prices belongs to the class of random coefficient autoregressive RCA(p) models, which are known to share important stylized facts of financial prices.  相似文献   
10.
Abstract: This paper proposes an empirical study of the links between poor governance, weak institutions and the growth of per capita income in the countries that belong to the Economic Community of West African States (ECOWAS). We estimate a conditional beta‐convergence model using panel data. We find that variables such as the rule of law, property rights, the regulatory burden, political violence, and government ineffectiveness hinder growth in these countries. An interesting question is then the following: what can the countries do to improve their situations? To answer this question, we give several examples (Ghana, Nigeria and the NEPAD) of measures that are undertaken in order to strengthen the institutions and improve governance.  相似文献   
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