Are there any data sources or variables that measure how protectionist a country is? If so, what are they?
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1$\begingroup$ Yes, there are. Did you search online? For example, iccwbo.org/global-influence/g20/reports-and-products/… has an openness to trade index. WTO, World Bank and similar organizations collect this data. $\endgroup$ – Sander Heinsalu May 2 '15 at 4:39
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$\begingroup$ Do any of these organizations have these data for a large number of country-years? I'm doing time series cross-sectional work. $\endgroup$ – user46226 May 4 '15 at 22:23
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$\begingroup$ @SanderHeinsalu good sources. you could include elaborate and turn into an answer. $\endgroup$ – Jamzy Nov 4 '15 at 5:39
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$\begingroup$ There is some research about trade restrictiveness, for example: siteresources.worldbank.org/INTRES/Resources/… Also here: econ.worldbank.org/WBSITE/EXTERNAL/EXTDEC/EXTRESEARCH/… Not sure, but I think it's based on tariff-data and such... hope this helps $\endgroup$ – tibo Jun 10 '16 at 12:44
Looked a bit further, I think I possibly found what you're looking for:
The Overall Trade Restrictiveness Index (OTRI) summarizes the trade policy stance of a country by calculating the uniform tariff that will keep its overall imports at the current level when the country in fact has different tariffs for different goods.
The data: http://siteresources.worldbank.org/INTRES/Resources/469232-1107449512766/OTRI2009.xlsx
hope this helps, best regards
Another useful World Bank data set on protectionism is the Temporary Trade Barriers Database (TTBD)
The TTBD website hosts newly collected, freely available, and detailed data on more than thirty different national governments' use of policies such as antidumping (AD), global safeguards (SG), China-specific transitional safeguard (CSG) measures, and countervailing duties (CVD).