This thesis consists of six papers, related to artifactual field experiments, conducted in South Africa. The main focus of the thesis is the effect of different forms of heterogeneity on cooperation…

Although conventional economic theory proposes that only the absolute levels of income and consumption matter for people’s utility, there is much evidence that relative concerns are often important…

This study employed a choice experiment (CE) to ascertain consumer preferences and willingness to pay (WTP) for non-market food product quality attributes. Data were obtained from a large mail survey…

This paper analyses the impact of income inequality on public good provision in an experimental setting. A sample of secondary school students were recruited to participate in a simple linear public…

The European Union has been relatively cautious about using biotechnology in food production. A label regime combined with the right of individual member states to ban introduction of new genetically…

Land degradation poses a serious problem for the livelihoods of rural producers. Furthermore, there is rarely enough private investment taking place to commensurate the scale of the problem. This…

Poverty alleviation would remain a crucial part of the overall development agenda in Ethiopia in the years to come. The economy is among the most vulnerable in sub-Saharan Africa and with per capita…

The study sets out to assess the link between land leasing behavior and productivity differentials between male and female headed households. A non-cooperative game model with double-moral hazard…

This paper analyses differences in the choice of health care facility by ill individuals in HIV/AIDS-affected households in the Free State province of South Africa. This paper analyses differences in…

In the highlands of Ethiopia, livestock as an important component of the mixed farming system perform multiple functions providing high quality food, draft power and manure for crop production, and…