1. Estimating the size of the shadow economy in Spain: A structural model with latent variables;A Ala��n-Pardo;Applied Economics,2005
2. Office of the Prime Minister and Council of Ministers;AML/CFT National Strategy and Action Plans,2019
3. The Canadian underground economy: An examination of Giles and Tedds;T Breusch;Canadian Tax Journal,2005
4. The demand for currency relative to the total money supply;P Cagan;Journal of Political Economy,1958