Cover crops are considered to be beneficial for multiple ecosystem services, and they have been widely promoted through the Common Agricultural Policy (CAP) in the EU and Farm Bill Conservation Title Programs, such as the Environmental Quality Incentives Program (EQIP), in the USA. However, it can be difficult to decide whether the beneficial effects of cover crops on some ecosystem services are likely to outweigh their harmful effects on other services, and thus to decide whether they should be promoted by agricultural policy in specific situations.

Smallholder producers in sub-Saharan Africa are often unable integrate into markets and access high-value opportunities by effectively participating in global chains for high-value fresh produce. Using data from a survey of large avocado farmers in Kenya, this study examines the determinants and impacts of smallholder-producer participation in avocado export markets on labor inputs, farm yields, sales prices, and incomes, using a switching regression framework to control for selection effects.

Despite its ostensible future orientation, research on land use planning has given relatively little consideration to temporality, either empirically or conceptually. The need for analytical advances becomes clear when considering the treatment of ‘end-of-life’ issues for renewable energy facilities like onshore wind. Expanding renewables is central to sustainable energy futures yet land use regulation often treats consents as ‘temporary’, raising questions about how the trajectories of energy transition are maintained into the future.