Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 48
Primeira ... 123 ... Última
Imagem não selecionada

Imprime registro no formato completo
Aquaculture for African smallholders AgEcon
Brummett, Randall E.; Noble, R..
Tipo: Report Palavras-chave: Small scale aquaculture; Integrated farming; Aquaculture systems; Appropriate technology; Malawi; Agribusiness.
Ano: 1995 URL: http://purl.umn.edu/44729
Imagem não selecionada

Imprime registro no formato completo
Macroeconomic adjustment and agricultural performance in Southern Africa: a quantitative overview AgEcon
Bautista, Romeo M..
"February 1996." Includes bibliographical references (p. 29-30).
Tipo: Working or Discussion Paper Palavras-chave: Macroeconomics -- Models; Economic development; Agricultural development -- Africa; Southern; Malawi; Tanzania; Zimbabwe; Zambia; International Development.
Ano: 1996 URL: http://purl.umn.edu/97768
Imagem não selecionada

Imprime registro no formato completo
Market Access by Smallholder Farmers in Malawi: Implications for Technology Adoption, Agricultural Productivity, and Crop Income AgEcon
Zeller, Manfred; Diagne, Aliou; Mataya, Charles.
In Malawi, maize is the major crop and food staple. Given limited off-farm employment opportunities, much-needed increases in household income for improving food security must come from gains in agricultural productivity through better technology and more profitable crops. In the past, agricultural policy promoted hybrid maize and, more recently, tobacco to increase smallholder income. This paper presents an analysis of what determines the adoption of these two crops and what kind of income effects follow from adoption. Apart from factor endowment and exposure to agroecological risks, differences in the household's access to financial and commodity markets significantly influence its cropping shares and farm income.
Tipo: Working or Discussion Paper Palavras-chave: Employment; Non-agricultural; Malawi; Tobacco; Price; Food Security; Maize; Crop Production/Industries; Marketing.
Ano: 1997 URL: http://purl.umn.edu/97054
Imagem não selecionada

Imprime registro no formato completo
Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malaw^ i 5. Description of Gulella meredithae spec. nov. Naturalis
Bruggen, A.C. van.
Gulella meredithae spec. nov. is described from the uplands of central and northern Malawi. It belongs to what has been termed the G. browni-group (better called the G. radius-group), an assemblage of Central and East African taxa with small shells with a noticeably acute apex, with more or less smooth nepionic whorls and with marked costulation on the remaining whorls. Attention is drawn to the striking juvenile apertural dentition.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pulmonata; Streptaxidae; Gulella; Africa; Malawi; Juvenile dentition; Taxonomy; 42.73.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/216030
Imagem não selecionada

Imprime registro no formato completo
Soil Fertility Management Choice in the Maize-Based Smallholder Farming System in Malawi AgEcon
Wobst, Peter; Tchale, Hardwick; Frohberg, Klaus.
The paper analyses the factors that affect smallholder farmers’ choice of soil fertility management options in Malawi using a two-stage maximum likelihood estimation procedure. Using results from the Double-Hurdle model, the paper estimates the probabilities and intensities of fertilizer application conditional on choice of inorganic fertilizer. The findings indicate that relative wealthy indicators, human capital, credit and market access, food security index and land pressure are the main factors that greatly influence farmers’ choice and intensity of input investment. Although there is a high and positive correlation between probability of adoption and intensity of application, factors that influence adoption are not necessarily the same as those that...
Tipo: Conference Paper or Presentation Palavras-chave: Soil fertility management; Smallholder farmers; Double-Hurdle model; Malawi; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/9524
Imagem não selecionada

Imprime registro no formato completo
Why the Poor in Rural Malawi Are Where They Are: An Analysis of the Spatial Determinants of the Local Prevalence of Poverty AgEcon
Benson, Todd; Chamberlin, Jordan; Rhinehart, Ingrid.
We examine the spatial determinants of the prevalence of poverty for small spatially defined populations in rural Malawi. Poverty prevalence was estimated using a small-area poverty estimation technique. A theoretical approach based on the risk chain conceptualization of household economic vulnerability guided our selection of a set of potential risk and coping strategies—the determinants of our model—that could be represented spatially. These were used in two analyses to develop global and local models, respectively. In our global model—a spatial error model—only eight of the more than two dozen determinants selected for analysis proved significant. In contrast, all of the determinants considered were significant in at least some of the local models of...
Tipo: Working or Discussion Paper Palavras-chave: Spatial regression; Poverty determinants; Poverty mapping; Malawi; Food Security and Poverty.
Ano: 2005 URL: http://purl.umn.edu/59601
Imagem não selecionada

Imprime registro no formato completo
Alternative Soil Fertility Management Options in Malawi - An Economic Analysis AgEcon
Sauer, Johannes; Tchale, Hardwick.
In this paper, we analyze the factors that influence the productivity of maize among smallholder farmers, given that unfavourable output and input market conditions throughout the 1990s have compelled smallholder farmers into unsustainable agricultural intensification. We use farm-household survey data in order to compare the productivity of smallholder maize production under integrated (ISFM) and chemical-based soil fertility management using a normalized translog yield response model. The results indicate higher maize yield responses for integrated soil fertility management options after controlling for the intensity of fertilizer application, labour intensity, seed rate, land husbandry practices as well as selected policy factors. The estimated model is...
Tipo: Conference Paper or Presentation Palavras-chave: Malawi; Smallholder agriculture; Soil fertility management; Yield response model; Livestock Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/21423
Imagem não selecionada

Imprime registro no formato completo
SOIL FERTILITY MANAGEMENT AND AGRICULTURAL PRODUCTIVITY IN MALAWI AgEcon
Tchale, Hardwick; Sauer, Johannes.
In this paper we analyze the factors that influence the productivity of maize among smallholder farmers. We use farm-household survey data in order to compare the productivity of smallholder maize production under integrated (ISFM) and chemical-based soil fertility management using a normalized translog yield response model. The results indicate higher maize yield responses for integrated soil fertility management options after controlling for the intensity of fertilizer application, labour intensity, seed rate, land husbandry practices as well as selected policy factors. The estimated model is highly consistent with theoretical conditions. Thus we conclude that the use of ISFM improves maize productivity, compared to the use of inorganic fertilizer only....
Tipo: Conference Paper or Presentation Palavras-chave: Malawi; Smallholder agriculture; Soil fertility management; Yield response model; Farm Management.
Ano: 2006 URL: http://purl.umn.edu/14954
Imagem não selecionada

Imprime registro no formato completo
Insights from Poverty Maps for Development and Food Relief Program Targeting: An Application to Malawi AgEcon
Benson, Todd.
Poverty mapping applies models of household welfare developed from detailed household consumption and expenditure surveys to the extensive but less detailed data from national censuses. A poverty map for Malawi, developed by drawing upon information from the 1997–98 Malawi Integrated Household Survey with the 1998 Malawi Population and Housing Census, provides aggregate estimates of household welfare and poverty at a highly disaggregated level—down to the level of local government wards. Given the close association between welfare and food security in most Malawi households, such a detailed poverty map can be of considerable value to development and relief organizations, as they plan and target activities to improve the ability of poor households to cope...
Tipo: Report Palavras-chave: Poverty mapping; Food security; Malawi; Food relief; Targeting; Food Security and Poverty.
Ano: 2006 URL: http://purl.umn.edu/55897
Imagem não selecionada

Imprime registro no formato completo
Alternative Soil Fertility Management Options in Malawi – An Economic Analysis AgEcon
Sauer, Johannes; Tchale, Hardwick.
In this paper, we analyze the factors that influence t he productivity of maize among smallholder farmers, given that unfavourable output and input market conditions throughout the 1990s have compelled smallholder farmers into unsustainable agricultural intensification. We use farm-household survey data in order to compare the productivity of smallholder maize production under integrated (ISFM) and chemicalbased soil fertility management using a normalized translog yield response model. The results indicate higher maize yield responses for integrated soil fertility management options after controlling for the intensity of fertilizer application, labour intensity, seed rate as well as land husbandry practices a s well as selected policy factors. The...
Tipo: Conference Paper or Presentation Palavras-chave: Smallholder agriculture; Yield response model; Soil fertility management; Malawi; Land Economics/Use.
Ano: 2006 URL: http://purl.umn.edu/25407
Imagem não selecionada

Imprime registro no formato completo
Determinants of Moral hazard in Microfinance: Empirical Evidence from Joint Liability Lending Schemes in Malawi AgEcon
Simtowe, Franklin; Zeller, Manfred; Phiri, Alexander.
Moral hazard is widely reported as a problem in credit and insurance markets, mainly arising from information asymmetry. Although theorists have attempted to explain the success of Joint Liability Lending (JLL) schemes in mitigating moral hazard, empirical studies are rare. This paper investigates the determinants of moral hazard among JLL schemes from Malawi, using group level data from 99 farm and non-farm credit groups. Results reveal that peer selection, peer monitoring, peer pressure, dynamic incentives and variables capturing the extent of matching problems explain most of the variation in the incidence of moral hazard among credit groups. The implications are that Joint Liability Lending institutions will continue to rely on social cohesion and...
Tipo: Conference Paper or Presentation Palavras-chave: Moral hazard; Joint liability; Dynamic incentives; Group lending; Malawi; Financial Economics.
Ano: 2006 URL: http://purl.umn.edu/25287
Imagem não selecionada

Imprime registro no formato completo
HIV/AIDS and Adolescent's School-Work Choices in Malawi AgEcon
Nankhuni, Flora J..
Malawi is facing a severe HIV/AIDS Pandemic. With an estimated prevalence rate of 14.2%, it ranks eight in the world. About 900,000 Malawians were infected by 2003 and there were110,000 new infections and 87,000 deaths due to HIV/AIDS in 2003. The disease has poten tially devastating impacts. For example, 'taking children out of school' is mentioned as one of the coping mechanisms (Garbus 2003) but evidence is mixed. Doctor (2004) found no statistically significant difference between enrollment of orphans and non-orphans and mentioned an effective extended family structure as explanation. However, HIV/AIDS, poverty, macroeconomic policies, and food shortages are reported to render informal safety networks of the extended family systems irrelevant (Garbus...
Tipo: Conference Paper or Presentation Palavras-chave: HIV/AIDS; Demographic Economics; Time Allocation; Malawi; Labor and Human Capital; 01; J1; J2; Human Capital; 05.
Ano: 2006 URL: http://purl.umn.edu/25540
Imagem não selecionada

Imprime registro no formato completo
Studies on the Streptaxidae (Mollusca: Gastropoda Pulmonata) of Malawi9. Description of Gulella streptostelopsis, a new Streptostele-like species of Gulella. Naturalis
Bruggen, A.C. van.
Gulella streptostelopsis spec. nov. is described from a series of localities of mainly between 1000 and 1500 m a.s.l. in Malawi south of about 11°S. The minute, almost smooth, shell (length 2.0-2.4 mm) resembles that of the genus Streptostele (hence the name), but is characterized by three-fold apertural dentition and just under six whorls. This taxon may represent a new genus; pending studies on the anatomy no new generic name is proposed.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pulmonata; Streptaxidae; Gulella; Streptostele; Taxonomy; Malawi; East Africa; 42.73.
Ano: 2007 URL: http://www.repository.naturalis.nl/record/226596
Imagem não selecionada

Imprime registro no formato completo
Agricultural Subsidies and Forest Pressure in Malawi's Miombo Woodlands AgEcon
Fisher, Monica G.; Shively, Gerald E..
This paper examines impacts of an agricultural subsidy program on forest pressure in Malawi. Using household survey data, we measure the effect on forest product marketing and on forest clearing of Malawi's Starter Pack Scheme (SPS). Regression results show households receiving a free packet of hybrid maize seed and chemical fertilizer (a "starter pack") had lower levels of commercial forest extraction than nonrecipient households. In addition, no measurable effect of starter pack receipt is found on forest clearing decisions, suggesting the program raised agricultural output without encouraging agricultural expansion. Findings thus indicate potential modest improvement in forest condition due to the SPS.
Tipo: Journal Article Palavras-chave: Africa; Agricultural intensification; Conservation and development; Malawi; Tropical deforestation; Agricultural and Food Policy; Resource /Energy Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/8646
Imagem não selecionada

Imprime registro no formato completo
Mortality, Mobility, and Schooling Outcomes Among Orphans: Evidence from Malawi AgEcon
Ueyama, Mika.
A tremendous increase in the number of orphans associated with a sharp rise in prime-age adult mortality due to AIDS has become a serious problem in Sub-Saharan Africa. In fact, more than 30 percent of school-aged children have lost at least one parent in Malawi. Lack of investments in human capital and adverse conditions during childhood are often associated with lower living standards in the future. Therefore, if orphans face an increased risk of poverty, exploitation, malnutrition, and poorer access to health care and schooling, early intervention is critical so as to avoid the potential poverty trap. The purpose of this study is to investigate the impacts of orphanhood/parental death on children’s mortality risks, migration behaviors, and schooling...
Tipo: Working or Discussion Paper Palavras-chave: Orphan; Mortality; Mobility; School enrollment; Grade progression; HIV/AIDS; Sample attrition; Malawi; Labor and Human Capital.
Ano: 2007 URL: http://purl.umn.edu/42403
Imagem não selecionada

Imprime registro no formato completo
Soil Fertility Management And Maize Productivity In Malawi: Curvature Correct Efficiency Modeling And Simulation AgEcon
Tchale, Hardwick; Sauer, Johannes.
We assess the level and determinants of relative technical efficiency of maize-based smallholder farmers using a translog stochastic frontier (TL) model and a symmetric generalized Barnett production function (SGB), both of which are tested for economic regularity conditions. In addition, we conduct a bootstrapping procedure in order to infer about the probability distributions and significance of the relative efficiency values for farmers using different soil fertility management options. The results indicate that higher levels of relative technical efficiency obtain when farmers use integrated soil fertility options compared to the use of chemical fertilizer only. The consistency of the results across the two models increase the robustness of the...
Tipo: Conference Paper or Presentation Palavras-chave: Smallholder agriculture; Relative technical efficiency; Soil fertility management; Malawi; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Relations/Trade; Labor and Human Capital; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.
Ano: 2008 URL: http://purl.umn.edu/52077
Imagem não selecionada

Imprime registro no formato completo
Income and Price Elasticities of Food Demand and Nutrient Consumption in Malawi AgEcon
Ecker, Olivier; Qaim, Matin.
Widespread malnutrition in developing countries calls for appropriate interventions, presupposing good knowledge about the nutritional impacts of policies. Little previous work has been carried out in this direction. We present a comprehensive analytical framework, which we apply for Malawi. Using household data and a demand systems approach, we estimate income and price elasticities of food, calorie, and micronutrient consumption. These estimates are used for policy simulations. Given multiple nutrient deficiencies, income-related policies are better suited than price policies to improve nutrition. While consumer subsidies for maize increase calorie and mineral consumption, they contribute to a higher prevalence of vitamin deficiencies.
Tipo: Conference Paper or Presentation Palavras-chave: Quadratic almost ideal demand system; Food security; Micronutrient malnutrition; Calorie elasticities; Nutrient elasticities; Malawi; Food Consumption/Nutrition/Food Safety.
Ano: 2008 URL: http://purl.umn.edu/6349
Imagem não selecionada

Imprime registro no formato completo
The Impact of Access to Credit on the Adoption of hybrid maize in Malawi: An Empirical test of an Agricultural Household Model under credit market failure AgEcon
Simtowe, Franklin; Zeller, Manfred.
Guided by the frame work of a household model under credit market failure, this paper aims at investigating the impact of access to credit on the adoption of hybrid maize among households that vary in their credit constraints. The data used in the study is from Malawi collected by the International Food Policy Research Institute (IFPRI).Using the direct elicitation approach; households are classified into constrained and unconstrained regimes. The impact of access to credit is estimated using a switching regression in a Double-Hurdle model. Results reveal that while access to credit increases adoption among credit constrained households, it has no effect among unconstrained households. Results also show that factors that affect adoption among credit...
Tipo: Conference Paper or Presentation Palavras-chave: Credit constraints; Double-hurdle; Hybrid maize; Adoption; Malawi; Agricultural and Food Policy; Agricultural Finance; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Relations/Trade; Labor and Human Capital; Marketing; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/52076
Imagem não selecionada

Imprime registro no formato completo
Promoting Fertilizer Use in Africa: Current Issues and Empirical Evidence from Malawi, Zambia, and Kenya AgEcon
Minde, Isaac J.; Jayne, Thomas S.; Crawford, Eric W.; Ariga, Joshua; Govereh, Jones.
This study was funded jointly by the Regional Strategic Agricultural Knowledge Support System (Re-SAKSS) for Southern Africa, based at International Water Management Institute, Pretoria, South Africa, and by the United States Agency for International Development's Africa Bureau. Much of the data and analysis reported in this study was carried out under the Tegemeo Agricultural Monitoring and Policy Analysis Project, funded by USAID/Kenya; the Food Security Research Project/Markets, Trade and Enabling Environment (MATEP) Program, funded by USAID/Zambia and the Swedish International Development Agency; and by the DFID and USAID offices in Lilongwe, Malawi.
Tipo: Report Palavras-chave: Fertilizer; Africa; Malawi; Zambia; Kenya; Crop Production/Industries; Q18.
Ano: 2008 URL: http://purl.umn.edu/54934
Imagem não selecionada

Imprime registro no formato completo
Trends and Patterns in Fertilizer Use by Smallholder Farmers in Kenya, 1997-2007 AgEcon
Ariga, Joshua; Jayne, Thomas S.; Kibaara, Betty; Nyoro, James K..
This study uses nationwide household panel survey data from 1996/97 to 2006/07 to examine trends in fertilizer use on maize by smallholder maize growers. The paper also compares these findings with fertilizer use rates according to other recent surveys in Kenya to assess comparability. We also examine the correlation between household fertilizer use and indicators of welfare such as wealth and landholding size. In addition, we use econometric techniques applied to household survey data to identify the main household and community characteristics associated with fertilizer purchases. Lastly, the study considers alternative policy strategies for maintaining smallholders’ access to fertilizer in the current context of substantially higher world fertilizer...
Tipo: Working or Discussion Paper Palavras-chave: Fertilizer; Africa; Malawi; Kenya; Small Holders; Crop Production/Industries; Q13.
Ano: 2008 URL: http://purl.umn.edu/55169
Registros recuperados: 48
Primeira ... 123 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional