NBER sentences which made me laugh
Higher hamburger prices may reduce the probability and frequency of use of marijuana and the frequency of smoking among drivers.
Well, you didn’t think the cross-elasticities were zero, did you? Here is the paper.
Higher hamburger prices may reduce the probability and frequency of use of marijuana and the frequency of smoking among drivers.
Well, you didn’t think the cross-elasticities were zero, did you? Here is the paper.