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THE GRAVITY MODEL AND THE PROBLEM OF ZERO’S IN AGRIFOOD TRADE
Gravity model selection bias Agrifood Trade Heckman Selection Model marginal effects
2014/4/11
In the analysis of bilateral trade flows, reported trade of zero or missing observations are quite common and this is a problem when estimating log-linear gravity equations. This has caused many resea...
Dissolving the Chimera of the ‘Adam Smith Problem’
Dissolving the Chimera Adam Smith Problem
2014/6/24
In The Wealth of Nations, Adam Smith set out his influential theory that societies achieve prosperity by securing the freedom of individuals to pursue their own endby the means they choose within a f...