Crime Trends

National Crime Victimization Survey

• Data Collection

  • 45,000 households surveyed over 3 years

  • Use of Random Sampling

  • Respondents asked if they have been victims of particular crimes

• Definitions of Crimes: Provides clear definitions and context for reporting

• Alternative Estimates: Yields a higher number of reported crimes compared to official statistics

National Crime Victimization Survey Problems

• Filters for Survey: May exclude certain demographics

• Victim Reluctance to Report Crimes: Many victims may not disclose incidents

• Memory Problems: Recall issues can lead to underreporting or misreporting

• Interviewer Effects: The presence and approach of interviewers may influence responses

• Legal Judgments: Victims may alter responses based on legal implications

Self-Report Data

• National Youth Survey: A survey targeting juveniles regarding delinquent acts

• Key Components Explored:

  • Context of delinquent acts (families, friends, school)

  • Motivation for committing crimes

• Confidentiality: Aims to improve accuracy of responses

• Findings: Crime is widespread across race and class in the US

Self-Report Data Problems

• Filters: Potential exclusion of certain cohorts

• Non-reporting by Respondents: Some may hesitate to disclose real data

• Memory Problems: Similar to victimization surveys, recall may affect reporting

• Under-representation: Repeat and persistent offenders often not captured

• Boasting: Some respondents may exaggerate criminal behavior

Comparing Data Sources

• Different Data Collection Methods: Various methodologies yield unique insights

• Overlap and Differences in Crimes: Some crimes may be reported across multiple sources

• Differing Crime Rates: Each source may reveal different profiles of crime

• Trends Over Time: Data is roughly comparable across historical periods

• Quantitative Data: All findings are influenced by social processes

Fieldwork / Ethnographies

• Focus Areas:

  • Victims

  • Criminals

  • Covert Participant Observation

• Other Sources of Data: Important for understanding crime in context

Crime Trends

• Annual Murder Rate in the U.S.: 10 murders per 100,000 people

• Historical Data: 2021 (6.8), 2023 Estimate (5.3), 1960, 1980, 2000, 2020 trends analyzed

Factors That DON’T Explain The Decline in Crime

• Strong Economy of the 1990’s: Not directly linked to crime rate decrease

• Changing Demographics: Fail to account for crime drop

• Policing Techniques: Limited relevance

• Increased Use of Capital Punishment: No clear causal connection

Levitt’s Explanations for Decrease in Crime

• Increased Number of Police: More law enforcement presence

• Rising Prison Population: Higher incarceration rates correlate with lower crime

• Receding Crack Epidemic: Reduction in drug-related crime

• Legalization of Abortion: Societal impacts leading to lower crime rates

Correlates of Crime

• Ice Cream Sales: Surprising correlation indicating seasonality in crime rates

• Ecology and Weather: Influences on criminal behavior

• Urban Areas: Crime density related to urbanization

• The South: Notable Southern subculture of violence

• Age: Correlation with crime onset and desistance

Correlates of Crime - Socioeconomic Status

• Common Finding: Lower-class individuals engage in more criminal conduct than higher classes

• Measurement:

  • Crime?

  • Official Crime Statistics?

  • Survey Data?

Socioeconomic Status Interactions with Other Variables

• Racial Dynamics: Relationship between socioeconomic status and delinquency holds across racial lines

• Gender: Crime rates also show variation between men and women

• Immigration: Notably lower crime in immigrant communities.