When food prices shoot over import parity, this often leads to social and political unrest and even the toppling of governments. If markets behaved efficiently and in the absence of trade barriers, food prices should not exceed the price in world markets plus the cost of importing it to domestic...

Rapid urbanization in Zambia means that increasingly heavy demands are being placed on urban food marketing systems. Investment in these systems has been woefully inadequate for many decades, creating supply bottlenecks and health hazards that work against the interests of both farmers and...