Explain why most countries still protect at least some of their industries although most trade theories conclude that free trade improves social welfare.

Mark: 1:1

Given that economic theory states that the use of protectionism creates efficiency costs and deadweight losses for an economy as well as foregoing the utilisation of a comparative advantage that allows gains through trade, protectionism was a particular ripe formality after the Second World War. Although since the 1940′s the world has seen a decline in protectionist measures policymakers still have the propensity to implement and support these seemingly rational measures of international economic policy. This essay attempts to explain the human rational phenomenon for the implementation of protectionism against economic intuition.