@Article{economics.ja.2007-6,
 author = {Ercolani, Marco G},
 title = {Hidden Economies and the Socially Optimal Fiscal-Tax to Liquidity-Tax Ratio},
 journal = {Economics: The Open-Access, Open-Assessment E-Journal},
 volume = {1},
 year = {2007},
 number = {2007-6},
 doi = {10.5018/economics-ejournal.ja.2007-6}, 
 url = {http://dx.doi.org/10.5018/economics-ejournal.ja.2007-6}
}