SMU Associate Professor Chang Pao Li (IMAGE) Singapore Management University Caption SMU Associate Professor Chang Pao Li has developed a research methodology that looks beyond tariff data to simulate and quantify the effects of the GATT/WTO on welfare and distribution across the world. Credit Singapore Management University Usage Restrictions Please include image credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.