Theoretical frameworks
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Jha, P., Musgrove, P., Chaloupka, F.J. et al. 2000
Chaloupka, F.J., Warner, K.E. 2000
Blough, D.K., Madden, C.W., Hornbrook, M.C. 1999
Suranovic, S.M., Goldfarb, R.S., Leonard, T.C. 1999
Grossman, M., Chaloupka, F.J., Sirtalan, I. 1997
Pindyck, R.S., Rubinefeld, D.L. 1997