This paper explores the collective action problem as it relates to climate change and develops two models that capture the mitigation/adaptation trade-off. The first model presents climate change as a certain disaster, while the second models climate change as a stochastic event. A one-shot...

We use behavioral and experimental economics to study a particular aspect of the economics of climate change: the potential trade-off between countries' investments in mitigation versus adaptation. While mitigation of greenhouse gases can be viewed as a public good, adaptation to climate change...

We use behavioral and experimental economics to study a particular aspect of the economics of climate change: the potential tradeoff between countries’ investments in mitigation versus adaptation. While mitigation of greenhouse gases can be viewed as a public good, adaptation to climate change...

In May 2003 South Africa introduced legislation intended to decrease plastic bag litter. It combined standards and price-based economic tools in an attempt to reduce the public's demand for plastic bags. This paper analyses the short term effects of the legislation on bag demand. It also...

We show that peer sanctioning increases cooperation in public goods experiments more in unequally endowed groups than in equally endowed groups. Punishment results in a redistribution of wealth from high to low endowment players within groups. <p>

Resource-poor rural South Africa is characterised by high human densities due to the historic settlement patterns imposed by apartheid, high levels of poverty, under-developed markets and substantially high food insecurity. This chronic food insecurity combined with climate and weather...

This study measures the link between expected health and contextual health uncertainty on sexual behaviours associated with the risk of HIV infection. We extend similar studies on the subject by focusing on contextual factors as a way of explaining individual sexual behaviour in low and high HIV...

Even though antiretroviral treatment is becoming more efficient and available, new HIV infections still occur. This is particularly the case in sub-Saharan Africa. Sexual transmission of HIV is still the main mode of transmission in sub-Saharan Africa, and multiple sex partners have been shown...

We explore the effects of announcements of future punishment opportunities in public goods games. Announcements can influence subject behaviour, through changing expectations, before the institution is implemented (adjustment effect) or after implementation (adaptation effect). Our results...