Given The Increasing Sensitivity Of Buyers In The Richer Countries Towards Quality Of Goods They Consume Low-Quality Exports Largely Constrain Export-Growth Of The Developing Countries. This Element Documents The Attempts To Estimate Cross-Country Quality Variations And Reviews The Demand Side And Supply Side Explanations For The Low-Quality Phenomenon. It Examines How Trade Policies Can Incentivize Export-Quality Upgrading And Discusses The Underlying Channels Through Which A Reverse Causality From Export-Quality Upon Within-Country Income Or Wage Inequality May Develop.