W. Vellema

发表

Chief for a day

J. List, P. Hofman, M. Voors, 2019 .

Gum arabic collection in northern Kenya : unexploited resources, underdeveloped markets

M. D’haese, W. Vellema, G. Mujawamariya, 2014 .

The effect of specialty coffee certification on household livelihood strategies and specialisation

M. D’haese, W. Vellema, A. B. Casanova, 2015 .

An Economic Approach to Household Collection of Gum Arabic from the Wild

M. D’haese, K. Burger, W. Vellema, 2013 .

Contract farming for improving smallholder incomes: What can we learn from effectiveness studies?

M. D’haese, Sam Desiere, G. Ton, 2018 .

Explaining hybrid "personalities" in smallholder sugar cane sourcing.

M. D’haese, W. Vellema, 2015 .

A validity assessment of the Progress out of Poverty Index (PPI)™.

Sam Desiere, Marijke D'Haese, M. D’haese, 2014, Evaluation and program planning.

Verifying Validity of the Household Dietary Diversity Score

M. D’haese, Sam Desiere, W. Vellema, 2016, Food and nutrition bulletin.

The effectiveness of contract farming in improving smallholder income and food security in low- and middle-income countries: a mixed-method systematic review

M. D’haese, Sam Desiere, G. Ton, 2017 .

The Effectiveness of Contract Farming for Raising Income of Smallholder Farmers in Low- and Middle-Income Countries: a Systematic Review

M. D’haese, Sam Desiere, G. Ton, 2017 .

Effectiveness of contract farming for improving income of smallholder farmers-Preliminary results of a systematic review

M. D’haese, Sam Desiere, G. Ton, 2016 .

Inclusive Business Models in Agri-food Value Chains: What Safeguards for Whom?

C. Ménard, W. Vellema, 2020, Journal of African Business.