DOI: 10.3886/icpsr35159.v1
title: Estimating the Unlawful Commercial Sex Economy in the United States [Eight Cities]; 2003-2007
title: Version 1

description: These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.
This study measures the size and structure of the underground commercial sex economy in eight major US cities: San Diego, Seattle, Dallas, Denver, Washington, DC, Kansas City, Atlanta, and Miami. The goals of this study were to derive a more rigorous estimate of the underground commercial sex economy (UCSE) in eight major US cities and to provide an understanding of the structure of this underground economy.
Researchers relied on a multi-method approach using both qualitative and quantitative data to estimate the size of UCSE including:
Collecting official data on crime related to the underground weapons and drugs economies; 
Conducting semi-structured interviews with convicted traffickers, pimps, child pornographers, and sex workers at the federal, state, and local levels; 
Conducting semi-structured interviews with local and federal police investigators and prosecutors to inform our analysis of the interrelationship across different types of underground commercial sex activity.;
description: The purpose of the study was to measure the size and structure of the underground commercial sex economy in the United States.
description: The study employed a multi-method approach, using both qualitative and quantitative data. Existing datasets documenting the market changes for illegal drugs and weapons were analyzed to measure changes in these markets and estimate the overall size of these markets. This was done by measuring changes in a series of "proxy" variables, which were assumed to be proportional to underlying activity. Thus, official national datasets that measured some sort of drug and gun activities over a period of time were collected to measure these changes. 
Qualitative data was collected through interviews with 119 stakeholders and 142 convicted offenders, including local and federal law enforcement officers, prosecutors, pimps/sex traffickers, sex workers, and child pornographers. A total of 119 in-person, semi structured stakeholder and offender interviews were conducted about the structure of the underground commercial sex economy (UCSE), the profits generated through the UCSE, networking within the UCSE, and changes in the UCSE over time.
description: This study includes four excel files that contain information on interviews with prostitutes and pimps as well as secondary analysis of economic factors in the 8 cities.
file14-SW_data_archiving.xlsx- This file contains 37 cases of prostitutes interviewed for this study. Questions include information on arrest/convictions, demographics, history of sex work, type of sex works (clients, preferences, etc.) safety, and violence while on the job.; 
file7-Pimp_data_archiving.xlsx- This file contains 74 cases of pimps interviewed for this study. Questions include information on charge, sentence, demographics of accused, how they became involved in pimping, history with drugs, history of owning a business, rules and expectations while pimping, acts of violence committed, payments, advertising, and perception of risks while pimping. ; 
Proxy data (8-17-13).csv- This file includes the variables used for analysis from the secondary data files, which are those taken from secondary data sources in order to understand the market changes for illegal drugs and weapons.; 
 Raw proxy data (8-21-13).csv- This file contains numbers directly from the base datasets. It shows the original variables before they were recoded, transformed, or otherwise manipulated. ;
description: None
description: Presence of Common Scales: 
					None
description: Response Rates: 
					Not applicable
description: Datasets: 
					
						DS1: Dataset
description: face-to-face interview
					These data are part of NACJD's Fast Track Release and are distributed as they were received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompanying readme file for a brief description of the files available with this collection and consult the investigator(s) if further information is needed.The qualitative data are not available as part of this data collection at this time.This data uses primary and secondary sources of data. Secondary data files used in this study are listed in the document: Dataset Guide 06.28.2013.docx, which is included in documentation files and publicly downloadable.One component to this study includes JAVA to develop the estimates used and the creation of a simulation program. Given that JAVA is not a program that ICPSR supports, NACJD requested that the lead methodologist describe the algorithm used and post them on an open forum site. These files are posted here: https://github.com/grouptheory/EPIC.
description: All pimps, sex workers, and child pornographers identified in eight cities in the United States from 2003-2007.
				   		Smallest Geographic Unit: city
description: Researchers employed a targeted, purposive sample of urban areas as study sites. Sites were selected from a list of the 100 largest metro statistical areas by population as defined by the Census Bureau and then narrowed down to 17 sites based off the following criteria: 
Number of convictions in the Federal Justice Statistics Resource Center (FJSRC) data for UCSE-related offenses (at least 20).; 
Recommendations from UCSE subject experts.; 
Existence of a federally-funded human trafficking task force.; 
Willingness of local law enforcement to work with researchers on this issue.; 
Availability of gun and drug data to be used as proxies; 
Geographic location.; 
Where the city falls within known "pimp circuits" in the United States.; 
Participants were then sought out in the following ways:
 Researchers searched for online published news stories and press releases on individuals who were arrested, adjudicated, and/or convicted on UCSE-related charges in the eight cities and their surrounding metropolitan areas.; 
 Researchers reached out to the Human Trafficking Clinic of the University of Michigan Law School, since they had recently launched the Human Trafficking Law Project (HTLP), a database that documents cases of human trafficking in the United States.; 
 Used subscription to CourtLink to gain access to court documents for these cases.; 
 Asked stakeholders in each of the eight cities to suggest potential respondents who were convicted on UCSE-related charges.;