The main idea being tested is that immigration can act as a force for neighborhood revitalization, boosting local economies and strengthening social networks in ways that can reduce crime. This is captured by the revitalization hypothesis, which holds that immigrant communities bring new businesses, investment, and daily activity that reinvigorate neighborhoods. With more economic activity and familiar social ties, residents often experience greater informal social control and collective efficacy, which can deter crime and improve safety overall. Acculturation effect centers on how immigrants adapt to language, norms, and culture in the host society, rather than on neighborhood economic renewal or crime dynamics. The neighborhood-level explanation for immigration and crime describes a broad framework of mechanisms at the local level, but the specific term for the idea of immigrants revitalizing communities and economies is the revitalization hypothesis. Self-selection focuses on the characteristics that migrants bring or select for, not on the community-wide revitalization and crime-reduction effects.

When crime-control efforts extend benefits beyond where they’re targeted, it’s describing how deterrence and police presence in one area can reduce crime in neighboring areas as well. This spatial spillover is captured by the term spatial diffusion of crime control benefits. It’s the best fit because it names the movement of those protective effects across space, not just within a single block. For context, deterrence from visible policing, patrols, or focused enforcement in one neighborhood can raise perceived risk for offenders in adjacent areas, leading to lower crime there too. The other options describe policing approaches or programs rather than this diffusion phenomenon: one refers to addressing minor disorder to prevent larger crime, another to a federal community policing funding program, and another to directing efforts at high-crime locations.

Criminogenic corporate culture describes an organizational environment that promotes or pressures people to break the law. The key idea is that the culture itself creates incentives, norms, and stressors that increase the likelihood of illegal behavior, not just a single act by one person. When targets are aggressive, so-called success is measured by outcomes at any cost, and there’s little visibility or protection for raising concerns, employees may see illegal acts as necessary or acceptable to meet goals. That systemic pressure is what makes the environment criminogenic. The other options point to specific crimes or outcomes rather than the underlying environment. Embezzlement is a crime someone commits, not a description of the workplace setting. Fraud against government likewise denotes a type of illegal act, not the cultural context that encourages wrongdoing. Corporate violence refers to harmful actions in the workplace, which can involve illegal acts but doesn’t specifically capture the notion of an environment that pressures lawful breaches. The best choice is the term that encapsulates how the organizational culture itself can generate criminal behavior.

Self-selection is the idea that people who choose to immigrate are not a random slice of their home population. Those who migrate tend to be more motivated, hardworking, and willing to take risks, so they bring traits associated with productivity and lower propensities for crime into the host country. This selective migration helps explain why immigrants may seem especially diligent and less likely to commit crimes. The other concepts don’t capture this initial filtering by who decides to move: the revitalization hypothesis relates to changes in crime due to urban or neighborhood renewal, the acculturation effect focuses on how immigrants adapt over time, and strain theory explains crime as a response to social pressures rather than who decides to migrate.