Background
We hypothesize that the location of highly segregated Hispanic and in
particular Puerto Rican neighborhoods can explain how Colombian-sourced
heroin, which is associated with a large-scale decade long decline in heroin
price and increase in purity, was able to enter and proliferate in the
US.
Methods
Our multidisciplinary analysis quantitatively operationalizes
participant-observation ethnographic hypotheses informed by social science
theory addressing complex political economic, historical, cultural and
social processes. First, we ethnographically document the intersection of
structural forces shaping Philadelphia's hypersegregated Puerto
Rican community as a regional epicenter of the US heroin market. Second, we
estimate the relationship between segregation and: a) the entry of Colombian
heroin into the US, and b) the retail price per pure gram of heroin in 21
Metropolitan Statistical Areas.
Results
Ethnographic evidence documents how poverty, historically-patterned
antagonistic race relations, an interstitial socio-cultural political and
geographic linkage to both Caribbean drug trafficking routes and the United
States and kinship solidarities combine to position poor Puerto Rican
neighborhoods as commercial distribution centers for high quality, low cost
Colombian heroin. Quantitative analysis shows that heroin markets in cities
with highly segregated Puerto Rican communities were more quickly saturated
with Colombian-sourced heroin. The level of Hispanic segregation
(specifically in cities with a high level of Puerto Rican segregation) had a
significant negative association with heroin price from 1990–2000.
By contrast, there is no correlation between African-American segregation
and Colombian-sourced heroin prevalence or price.
Discussion
Our iterative mixed methods dialogue allows for the development and
testing of complex social science hypotheses and reduces the limitations
specific to each method used in isolation. We build on prior research that
assumes geographic proximity to source countries is the most important
factor in determining illicit drug prices and purity, while we find more
complex, potentially modifiable determinants of geographic variation in
retail drug markets. We show that specific patterns of ethnic segregation,
racism, poverty and the political economy of socio-cultural survival
strategies combined to facilitate the entry of pure, inexpensive
Colombian-sourced heroin.