Awudu Abdulai

Estimating technical efficiency under unobserved heterogeneity with stochastic frontier models: application to northern German dairy farms (2007)

Abdulai, Awudu, Tietje, Hendrik

This article uses panel data estimation techniques to examine technical efficiency of individual dairy farms in northern Germany. To the extent that agricultural production is characterised by...

Optimum allocation of conservation funds and choice of conservation programs for a set of African cattle breeds (2005)

Reist-Marti, Sabine B, Abdulai, Awudu, Simianer, Henner

Abstract Although funds for livestock conservation are limited there is little known about the optimal allocation of conservation funds. A new algorithm was used to allocate Mio US$ 1, 2, 3, 5 or...

Food aid for market development in sub-Saharan Africa (2004)

Awudu Abdulai, Awudu Abdulai, Christopher B. Barrett, Christopher B. Barrett, Peter Hazell, Peter Hazell

DSGD Discussion Papers contain preliminary material and research results, and are circulated prior to a full peer review in order to stimulate discussion and critical comment. It is expected that...

CONTENTS (1999)

Contact Diana Flores, Awudu Abdulai, Christopher L. Delgado

Joachim von Braun, Wallace Huffman, an anonymous journal reviewer and George Peters for helpful comments and suggestions on an earlier draft. The usual disclaimer applies. by

The Impacts of Agricultural Price Policy on Cocoa Supply in Ghana: an Error Correction Estimation (1995)

Abdulai, Awudu, Rieder, Peter

This paper presents an empirical investigation of the supply of cocoa in Ghana. The error correction model which avoids the familiar partial adjustment model's unrealistic assumption of a fixed...

Achieving regional growth dynamics in African agriculture

Abdulai, Awudu, Diao, Xinshen, Johnson, Michael

"This study focuses on public investments and policy reforms for leveraging growth spillovers at the African regional level. A conceptual framework that is built on the endogenous growth theory and...

An empirical investigation of short and long-run agricultural wage formation in Ghana

Abdulai, Awudu, Delgado, Christopher L.

This paper investigates empirically the factors that influence real agricultural wage rates in Ghana, based on 1957 to 1991 data. The Johansen cointegration framework is used to examine long-run...

Slash-and-burn cultivation practice and agricultural input demand and output supply

ABDULAI, AWUDU, BINDER, CLAUDIA R.

This study uses an endogenous switching-regression model to examine the impact of slash-and-burn cultivation practice on the application of commercial fertilizer and pesticides, as well as yields and...

Measuring Heterogeneous Preferences for Cattle Traits among Cattle-Keeping Households in East Africa

Emily Ouma, Awudu Abdulai, Adam Drucker

This study employs mixed logit and latent class models to examine preferences for cattle traits with a focus on heterogeneity among cattle keepers, using choice experiment data of 506 cattle-keeping...

The Diffusion of New Agricultural Technologies: The Case of Crossbred-Cow Technology in Tanzania

Awudu Abdulai, Wallace E. Huffman

The recent literature on agricultural technology adoption shows that diffusion of new technologies varies significantly across space and time. Furthermore, puzzles exist about why some seemingly...

Food aid for market development in Sub-Saharan Africa

Abdulai, Awudu, Barrett, Christopher B., Hazell, Peter

"Food aid remains significant for food availability in many low-income countries in sub-Saharan Africa, helping to reduce the gap between food consumption needs and supply from domestic production...

Using Threshold Cointegration to Estimate Asymmetric Price Transmission in the Swiss Pork Market.

Abdulai, Awudu

This paper employs threshold cointegration tests that allow for asymmetric adjustment towards a long-run equilibrium relationship to examine the relationship between producer and retail pork prices...

The Impacts of Agricultural Price Policy on Cocoa Supply in Ghana: An Error Correction Estimation.

Abdulai, Awudu, Rieder, Peter

This paper presents an empirical investigation of the supply of cocoa in Ghana. The error correction model which avoids the familiar partial adjustment model's unrealistic assumption of a fixed...

An Empirical Investigation of Short- and Long-run Agricultural Wage Formation in Ghana

Awudu Abdulai, Christopher Delgado

This paper investigates the factors that influence real agricultural wage rates in Ghana, a critical issue in that country for promoting successful macroeconomic adjustment to structural changes in...

Household Demand for Food in Switzerland. A Quadratic Almost Ideal Demand System

Awudu Abdulai

In this paper we estimate a complete demand system for Switzerland, with emphasis on food demand, using a recent household expenditure survey. The Quadratic Almost Ideal Demand System (QUAIDS) is...

The Adoption of Water Conservation and Intensification Technologies and Farm Income: A Propensity Score Analysis for Rice Farmers in Northern Ghana

Faltermeier, Liane, Abdulai, Awudu

This study uses cross-sectional data of 342 small-scale lowland rice farmers in Northern Region of Ghana to analyze the impact of the adoption decision of bund construction and seed dibbling on net...

Empirical Analysis of Price Setting and Quantity Surcharges in the German Food Sector

Schmitz, Silke, Abdulai, Awudu

This study examined the incidence and determinants of quantity price discounts and quantity price surcharges in the German food sector through a bivariate probit, using recent consumer scanner survey...

Assessment of Farmer Preferences for Cattle Traits in Cattle Production Systems of Kenya

Ouma, Emily, Abdulai, Awudu, Drucker, Adam

The urgent need to improve livestock productivity in sub-Saharan Africa in order to keep pace with expected increases in demand for meat and milk is very topical. Breed improvement provides key entry...

Water Saving Technology in Chinese Rice Production - Evidence from Survey Data

Abdulai, Awudu, Glauben, Thomas, Herzfeld, Thomas, Zhou, Shudong

Whereas water is an important input in rice production, China faces severe problems with increasing demand for water and limited water resources. In conventional paddy production, one of the most...

Does Income Really Matter? Nonparametric and Parametric Estimates of the Demand for Calories in Tanzania

Abdulai, Awudu, Aubert, Dominique

This study employs both nonparametric and parametric methods to examine the influence of household expenditure and other demographic variables on household consumption of calories in Tanzania, using...

Contribution of Economics to Design of Sustainable Cattle Breeding Programs in Eastern Africa: A Choice Experiment Approach

Ouma, Emily Awuor, Abdulai, Awudu

Although livestock forms a very important component of the livelihoods of rural populations of developing countries, productivity remains very low. Livestock keepers are beset by various constraints....

Joint estimation of information acquisition and adoption of new technologies under uncertainty

Awudu Abdulai, Pierre Monnin, Jacques Gerber

This article develops a framework to examine households' joint decision to acquire information on new technologies and the adoption of the technology in the presence of uncertainty. The empirical...

Choice of Coordination Mechanism in the Kenyan Fresh Milk Supply Chain

Awudu Abdulai, Eliud A. Birachi

This paper examines the nature and determinants of coordination mechanisms used in the Kenyan fresh milk supply chains, using recent survey data of market participants from Nakuru and Nyandarua...

Valuing Traits of Indigenous Cows in Central Ethiopia

Girma T. Kassie, Awudu Abdulai, Clemens Wollny

"This research aimed at identifying and estimating the relative weight assigned to the preferred traits of indigenous cow population in the most dominant crop-livestock mixed production system in...

The impact of water conservation and intensification technologies: empirical evidence for rice farmers in Ghana

Liane Faltermeier, Awudu Abdulai

This study employs the propensity score matching model to examine the impact of the adoption of water conservation and intensification technologies on farm output and income among small-scale lowland...

The Impact of Trade and Economic Growth on the Environment: Revisiting the Cross-Country Evidence

Awudu Abdulai, Linda Ramcke

This paper explores the interrelations between economic growth, international trade and environmental degradation both theoretically and empirically. Panel data from developed and developing...

Optimum allocation of conservation funds and choice of conservation programs for a set of African cattle breeds

Reist-Marti, Sabine B, Abdulai, Awudu, Simianer, Henner

Although funds for livestock conservation are limited there is little known about the optimal allocation of conservation funds. A new algorithm was used to allocate Mio US$ 1, 2, 3, 5 or unlimited...