By Maxim Ananyev, Mikhail Poyker:

Inmates' informal code regulates their behavior and attitudes. We investigate whether prisons contribute to the spread of these norms to the general population using an exogenous shock of the Soviet amnesty of 1953, which released 1.2 million prisoners. We document the spread of prison norms in localities exposed to the released ex-prisoners. As inmates' code also ascribes low status to persons perceived as passive homosexuals, in the long run, we find effects on anti-LGBTQ+ hate crimes, homophobic slurs on social media, and discriminatory attitudes.

ZA DP No. 17138\ Bonn: Institute of Labor Economics, 2024. 

By Maxim Ananyev, Mikhail Poyker:

Inmates' informal code regulates their behavior and attitudes. We investigate whether prisons contribute to the spread of these norms to the general population using an exogenous shock of the Soviet amnesty of 1953, which released 1.2 million prisoners. We document the spread of prison norms in localities exposed to the released ex-prisoners. As inmates' code also ascribes low status to persons perceived as passive homosexuals, in the long run, we find effects on anti-LGBTQ+ hate crimes, homophobic slurs on social media, and discriminatory attitudes.

IZA DP No. 17138\ Bonn: Institute of Labor Economics, 2024. 

By Maxim Ananyev, Mikhail Poyker:

Inmates' informal code often ascribes low status to persons perceived as passive homosexuals. We use longitudinal data to investigate whether prison experience contributes to anti-gay beliefs. We find that prison experience prompts a higher level of anti-gay sentiments among males and their families, while no discernible difference exists before incarceration. We find no effect for female ex-prisoners. We confirm that the results are not driven by pre-incarceration trends, changes in trust and social capital, socioeconomic status, mental health, masculinity norms, and other potential alternative explanations. Our study sheds light on the overlooked role of prisons as a significant contributor to the propagation of anti-gay attitudes.

IZA DP No. 17137 Bonn: Institute of Labor Economics, 2024. 

By Julian V. Johnsen, Laura Khoury:

Peer actions play a key role in the criminal sector due to its secrecy and lack of formal institutions. A significant part of criminal peer exposure that happens in prison, is directly influenced by policymakers. This paper provides a broader understanding of how peer effects shape criminal behavior among prison inmates, focusing on co-inmate impacts on recidivism and criminal network formation. Using Norwegian register data on over 140,000 prison spells, we causally identify peer effects through within-prison variation in peers over time. Our analysis reveals several new insights. First, exposure to more experienced co-inmates increases recidivism. Second, exposure to "top criminals" (i.e. those with extreme levels of criminal experience) plays a distinctive role in shaping these recidivism patterns. Third, inmates form lasting criminal networks, as proxied by post-incarceration co-offending. Fourth, homophily intensifies these peer effects. These findings contribute to the theoretical understanding of peer influences in criminal activities and offer practical insights for reducing recidivism through strategic inmate grouping and prison management policies.

Bonn: Institute of Labor Economics - IZA, 2024.