The decline in commodity prices that began with metals and agriculture four years ago—joined by crude oil in mid-2014—continued in 2015Q1 (Figure 1). Energy, metals, and agricultural prices were down 28, 11, and 5 percent, respectively, from the previous quarter. Increasing supplies, bumper...

The twelfth Zambia economic brief with a focus on how Zambia can harness its renewable resources to promote sustainable growth. This brief is part of a series of short economic updates produced twice a year by the World Bank

This is a companion to the Global Economic Prospects 2010. Most commodity prices reached historical highs in mid-2008, giving rise to the longest and broadest commodity boom of the post-WWII period. Apart from strong and sustained economic growth, the boom was fueled by numerous factors...

Food price inflation has increased persistently in recent years in Turkey with a widening divergence from international food price inflation. The study analyzes the main inefficiencies in the Turkish agricultural sector through the lens of food price formation and discusses the policy actions...

Economic theories of managing renewable resources, such as fisheries and forestry, traditionally assume that individual harvesters are perfectly rational and thus able to compute the harvesting strategy that maximizes their discounted profits. The current paper presents an alternative approach...

Evolutionary and environmental economics have a potentially close relationship. This paper reviews past and identifies potential applications of evolutionary concepts and methods to environmental economics. This covers a number of themes: resource use and ecosystem management; growth and...

Optimal harvesting of prey in a predator–prey ecosystem is studied under the condition that the existence of the predator has value. Predators (birds) and humans (fishers) compete for prey (shellfish). The behavior of the system is studied and conditions for optimal control are deduced....

This discussion paper led to a publication in <A href="http://www.sciencedirect.com/science/article/pii/S0095069611000556">'Journal of Environmental Economics and Management'</A>, 62(2), 229-40.<p>We analyze how the threat of a potential future regime shift affects optimal management. We use a simple general growth model to analyze four cases that involve combinations of stock...</p></a>