413047-Underground-Commercial-Sex-Economy

Table 3.12 Cross-City Sex Proxy Ratios (continued)
2007 Atlanta Dallas Denver Miami San Diego Seattle DC
Atlanta 1.00 0.67 0.56 0.91 0.28 0.37 0.30
Dallas 1.97 1.00 0.68 1.76 1.07 1.04 0.93
Denver 4.53 1.87 1.00 3.93 1.79 1.92 1.69
Miami 1.14 0.67 0.45 1.00 0.67 0.64 0.67
San Diego 3.61 0.99 0.60 1.96 1.00 1.04 0.91
Seattle 2.70 0.96 0.77 1.71 1.04 1.00 0.88
DC 3.38 1.07 0.71 1.92 1.13 1.14 1.00
Table 3.13 Cross-Year Sex Proxy Ratios
City 2007/2003
Atlanta 1.2689
Dallas 1.0344
Denver 0.7932
Miami 0.8090
San Diego 0.6745
Seattle 2.6667
DC 0.6939
1.4.2. Drug Proxy Ratio Constraints
For each distinct pair of cities and choice of time index , we introduce upper and
lower bound ratio constraints bounding the relative sizes of the cash-based drug economies of cities
and cities .
These constraints codify that the ratio of values the drug variables must agree with the corresponding
ratios of the linear proxy , up to a slack margin of . In our analysis, we took , allowing
for a 1 percent deviation of the drug variable ratios from the drug proxy ratios. The setting of the slack
margin was determined to be reasonable based on the fact that several coherent low-level proxies for
drugs were aggregated to form (see section 1.2.2. Linear Proxy ).
40