State support remains a leading cause of tension in international commercial relations. Governments can see trade distortions that look like they were caused by industrial subsidies, but they lack the data to illuminate that state support. In the 1980s at the height of the farm wars the...

Fossil fuel subsidies undermine efforts to mitigate climate change, and they damage the trading system. Multilateral discussion is hampered by inconsistent definitions and incomplete data, which could increase the risks of WTO disputes. Members do not notify such subsidies as much as they should...