Comparative data on agricultural subsidies Where can I find data on the agricultural subsidies of each country, ideally in a comparable fashion? I've googled without success. I hope there are some experts on this forum that can direct me to specialized data sources, or perhaps books. 

It seems this is all surrounded with secrecy, so no much is available online.

World bank website doesn't have this information.
Which countries are you looking at? This paper seems to suggest there's data from OECD countries.

You might also take a look here and here. I downloaded zip files and, if I understand correctly, there seem to be data of subsidies by country, product, and year.