Imbrasia Belina also known as the mopane worm, like other edible insects and caterpillars, is a vital source of protein to Southern African countries. The worms live and graze on mopane trees, which occupy agricultural land. With increasing commercialization of the worm, the management of the worm, which was hitherto organized as a common property resource, has degraded to a near open access.

Fertilizer use (including dung) in Ethiopia is low, particularly in the northern highlands, where dung is a significant source of household fuel.

The empirical analysis in this paper shows that production risk plays a significant role in sustainable land-management technology adoption in the Ethiopian highlands.

Forest data from the recent period of rapid growth in China show interesting macroeconomic and population impacts on the forest.

Analysis of the differences in firms’ responsiveness to PROPER (Indonesia’s successful public disclosure program for industrial pollution control) showed that foreign-owned firms and firms in densely populated areas were more likely to respond to public environmental ratings. Firms with bad environmental performances felt pressure to improve, but this incentive diminished after the initial abatement steps.

Stone bunds in the Ethiopian highlands showed statistically significant and positive impact on yield in low-rainfall areas, but not in high-rainfall areas, and they did not have a statistically significant impact on production risk in either area.

Stone bund performance varied by agro-ecology type, which implies the need for appropriate technologies that enhance productivity and are better adapted to local conditions.

Measuring and analyzing the impact of fanya juu bunds on the value of crop production in Ethiopian highlands with high rainfall had the surprising conclusion that this technology reduced soil erosion and off-site effects at the expense of lower value of crop production and, hence, poor Ethiopian farmers.

This study of the deleterious effect on fishing by the water hyacinth invasion of Lake Victoria found an unusual positive: the decline of fish catchability caused by the the abundance of water hyacinths has paradoxically stopped or at least postponed serious overfishing.

This examination of the impacts of market and institutional imperfections on technology adoption found that Ethiopian farmers’ decisions to adopt fertilizer significantly and negatively depended on whether they also adopted soil conservation, but not vice versa. Market imperfections were significant factors in explaining variations in decisions to adopt farm technology, such that relieving market imperfections could increase adoption of farm technologies.

Just how important social context is for voluntary contributions is investigated in a natural field experiment, where subjects made either actual or hypothetical contributions to a national park in Costa Rica.

This study found that both anonymity and information about others’ donations influenced contributions, implying that validity testing of stated preference methods needs to include comparisons of hypothetical and actual behavior for given social contexts.