The Effects of Family Structure on African American Adolescents' Marijuana Use

The relationship between family structure and marijuana use throughout adolescence was assessed among 1,069 African Americans from the NLSY. A model was also tested suggesting that the effects of family structure on marijuana use would be mediated by poverty, neighborhood quality, and adolescents' self‐control. As most prior studies have found, family structure was not related to female adolescents' marijuana use. For young men, being raised with both biological parents was associated with less marijuana use throughout adolescence compared to those whose mothers never married, divorced early and never remarried, or divorced and remarried. Some support for the model was also found. We concluded that being raised without the presence of a biological father is a risk factor for marijuana use among young men, but African American young women from single‐parent households have unique resources that protect them from marijuana use. Understanding those resources may offer insight into prevention programs for other youth.     

Study: Elevated risk of substance use if parents use marijuana

Last month, JAMA Network Open published a study indicating that recent and past parental marijuana use confers a heightened risk for use of marijuana — and other substances — by their adolescent and young adult offspring who live in the same household. The article from the Substance Abuse and Mental Health Services Administration (SAMHSA), the National Institute on Drug Abuse and McLean Hospital is in line with federal anti‐marijuana policy (marijuana is still illegal under federal law, although states have legalized it, both recreationally, in some cases, and medically, in more).     

INTERGENERATIONAL EFFECTS OF WELFARE REFORM: ADOLESCENT DELINQUENT AND RISKY BEHAVIORS

This study investigates effects of welfare reform in the United States on the next generation. Most previous studies of effects of welfare reform on adolescents focused on high‐school dropout of girls or fertility; little is known about how welfare reform has affected other teenage behaviors or boys. We use a difference‐in‐difference‐in‐differences framework to identify gender‐specific effects of welfare reform on skipping school, fighting, damaging property, stealing, hurting others, smoking, alcohol, marijuana, and other illicit drugs. Welfare reform led to increases in delinquent behaviors of boys as well as increases in substance use of boys and girls, with substantially larger effects for boys. (JEL K42, I12, I31, I38)     

THE POT RUSH: IS LEGALIZED MARIJUANA A POSITIVE LOCAL AMENITY?

This paper examines the amenity value of legalized marijuana by analyzing the impact of marijuana legalization on migration to Colorado. Colorado is the pioneering state in this area having legalized medical marijuana in 2000 and recreational marijuana in 2012. We test whether potential migrants to Colorado view legalized marijuana as a positive or negative local amenity. We use the synthetic control methodology to examine in- and out-migration to/from Colorado versus migration to/from counterfactual versions of Colorado that have not legalized marijuana. We find strong evidence that potential migrants view legalized marijuana as a positive amenity with in-migration significantly higher in Colorado compared with synthetic-Colorado after the writing of the Ogden memo in 2009 that effectively allowed state laws already in place to be activated, and additionally after marijuana was legalized in 2013 for recreational use. When we employ permutation methods to assess the statistical likelihood of our results given our sample, we find that Colorado is a clear and significant outlier. We find no evidence for changes in out-migration from Colorado suggesting that marijuana legalization did not change the equilibrium for individuals already living in the state. (JEL I18, R23, K42, C22)     

Daily,high‐potency cannabis linked to first psychosis

Daily use of marijuana (cannabis) is associated with a greater than three times increased risk of psychotic disorder compared to never users, according to a study published in Lancet Psychiatry. This risk increased to nearly five times if high‐potency cannabis was used. Across the 11 sites included in the study, if high‐potency cannabis were not available, 12.2 percent of cases of first‐episode psychosis could be prevented, rising to 30.3 percent in London and 50.3 percent in Amsterdam.     

Patterns of alcohol use and marijuana use among students at 2- and 4-year institutions

Objective: The objective of this study was to understand substance use patterns of alcohol, marijuana, and simultaneous alcohol and marijuana (SAM) use among 2- and 4-year college students. Participants: Participants were 526 young adults aged 18–23 (n?=?355 4-year students; n?=?171 2-year students) recruited from February 2015 to January 2016 who were participating in a larger longitudinal study. Methods: Latent class analysis (LCA) was used to identify past-month classes of alcohol, marijuana, and SAM use. Results: Among both 2- and 4-year students, a four-class solution yielded the best-fitting model, with 2-year classes tending to include greater marijuana use and less alcohol use and 4-year classes tending to include heavy alcohol use. Demographic characteristics were largely similar across classes. Conclusions: Classes of alcohol, marijuana, and SAM use differed by education status. Screening and prevention efforts for 4-year students may need to be tailored for the needs of 2-year students.     

Internalizing Symptoms,Peer Substance Use,and Substance Use Initiation

This study used longitudinal survey and social network data covering sixth through ninth grades to test whether internalizing symptoms make early adolescents more prone to (1) exposure to and (2) influence by substance‐using peers. Random effects regressions revealed that increases in symptoms were significantly associated with increases in the proportion of friends who used cigarettes, alcohol, and marijuana; some associations weakened across grades. Event history models revealed that the effect of friends' smoking on smoking initiation decreased as internalizing symptoms increased; symptoms did not moderate the effects of friends' alcohol and marijuana use on alcohol and marijuana use initiation. These findings counter the influence hypothesis of the co‐occurrence of internalizing symptoms with substance use and partly support the exposure hypothesis.     

SAMHSA plans changes to NSDUH: DSM‐5 updates

The Substance Abuse and Mental Health Services Administration (SAMHSA) announced last week that it will start collecting data on vaping, marijuana withdrawal symptoms, synthetic marijuana, and updates to accord with Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM‐5) to focus on craving, in the annual National Survey on Drug Use and Health (NSDUH).     

The Use of Frames Analysis in Evaluating Capacity‐Building in Local Coastal Programs in Louisiana*

Abstract Frames theory has been widely used to explain the dynamics of group processes and decision‐making. Some researchers have applied frames theory to policy adoption and implementation. Following from this, my research applies frames analysis to a regulatory program in coastal Louisiana. The data derive from a pre‐Hurricane Katrina study of the effectiveness of Louisiana's Coastal Resources Program in building coastal zone management (CZM) capacity among local decision‐makers. In this paper, I examine the potential influence of three independent variables (Local Coastal Program development, type of respondent, and frequency of coastal zone management interaction) on the level of agreement with regulator frame ideology. The frames analysis shows that parishes with Local Coastal Programs (LCPs) have a significantly stronger presence of regulator framing than do parishes without LCPs. Among the three types of decision‐makers (CZM administrators/staff, CZM advisory panel members and parish council or police jury) regulator frame agreement is particularly strong among advisory panel members, while agreement with regulator frames is lowest among parish council or police jury officials. Respondents reporting more CZM interaction exhibit higher levels of regulator frame agreement. OLS regression shows that the conditions of having an LCP, or being a panel member and having greater frequency of CZM interactions significantly increase the likelihood of regulator framing. These findings demonstrate the importance of the LCP process in the shaping of frames congruent with lead agency ideology.     

How Academic Achievement,Attitudes, and Behaviors Relate to the Course of Substance Use During Adolescence: A 6‐Year,Multiwave National Longitudinal Study

Self‐report data regarding alcohol, cigarette, and marijuana use were collected biennially from ages 14 to 20 in a nationally representative panel sample of adolescents (N=1,897) from the Monitoring the Future study. Growth curve analyses were performed using hierarchical linear modeling to consider psychosocial background, motivation and school attitudes, and parental and peer influences at age 14 as predictors of concurrent substance use and change in substance use. Results indicated that school misbehavior and peer encouragement of misbehavior were positively associated with substance use at age 14 and with increased use over time; school bonding, school interest, school effort, academic achievement, and parental help with school were negatively associated. The protective effects of positive school attitudes and perceptions of high status connected to academics were stronger for low‐achieving compared with high‐achieving youth. Implications for a developmental perspective on substance use etiology and prevention are discussed.     

Childhood Family,Ethnicity, and Drug Use Over the Life Course

Using multiply imputed data from 5 waves of the National Longitudinal Survey of Youth (N = 8,294), we investigated whether childhood family characteristics and childhood religious affiliation explain ethnic differences in marijuana and cocaine use in the last year. None of the childhood factors explained ethnic differences in drug use, though ethnicity and several childhood factors had age‐specific effects. Over the life course from young adulthood to middle age, ethnic differences in drug use changed and the effect of childhood religious affiliation declined. Having a more intellectually rich family in childhood increased the risk of drug use at younger ages but reduced it at older ages. The study demonstrates the significance of childhood family experiences for understanding adult drug use.     

THE CROSS-BORDER SPILLOVER EFFECTS OF RECREATIONAL MARIJUANA LEGALIZATION

We examine the spillover effects of recreational marijuana legalization (RML) in Colorado and Washington on neighboring states. We find that RML causes a sharp increase in marijuana possession arrests in border counties of neighboring states relative to nonborder counties in these states. RML has no impact on juvenile marijuana possession arrests but is rather fully concentrated among adults. We find mixed results regarding the source(s) of this change. Using separate data on self-reported marijuana use, we show that RML is accompanied by an increase in use in neighboring states relative to non-neighboring states. However, the increase in arrests following RML is highly concentrated in a few states, which we argue is more consistent with a change in police enforcement near some state borders driving the arrest results. (JEL I12, I18, K14)     

THE EFFECT OF LEGALIZING RETAIL MARIJUANA ON HOUSING VALUES: EVIDENCE FROM COLORADO

Does legalizing retail marijuana generate more benefits than costs? This paper provides a first step toward addressing that question by measuring the benefits and costs that are capitalized into housing values. We exploit the time‐series and cross‐sectional variations in the adoption of Colorado's municipality retail marijuana laws (RMLs) and examine the effect on housing values with a difference‐in‐differences strategy. Our estimates show that the legalization leads to an average 6% increase in housing values, indicating that the capitalized benefits outweigh the costs. In addition, we find suggestive evidence that this relatively large housing value appreciation is likely due to RMLs inducing strong housing demand while having no discernible effect on housing supply. Finally, we show that the effect of RMLs is heterogeneous across locations and property types. (JEL K20, R28)     

Do Alcohol and Marijuana Use Decrease the Probability of Condom Use for College Women?

Alcohol and marijuana use are thought to increase sexual risk taking, but event-level studies conflict in their findings and often depend on reports from a limited number of people or on a limited number of sexual events per person. With event-level data from 1,856 sexual intercourse events provided by 297 college women (M _age = 18 years; 71% White), we used multilevel modeling to examine associations between alcohol and marijuana use and condom use as well as interactions involving sexual partner type and alcohol-sexual risk expectancies. Controlling for alternative contraception use, partner type, regular levels of substance use, impulsivity and sensation seeking, and demographics, women were no more or less likely to use condoms during events involving drinking or heavy episodic drinking than during those without drinking. However, for drinking events, there was a negative association between number of drinks consumed and condom use; in addition, women with stronger alcohol-sexual risk expectancies were marginally less likely to use condoms when drinking. Although there was no main effect of marijuana use on condom use, these data suggest marijuana use with established romantic partners may increase risk of unprotected sex. Intervention efforts should target expectancies and emphasize the dose-response relationship of drinks to condom use.     

Patterns of Alcohol and Marijuana Use at School

The problem of adolescent substance use has been examined extensively. Beyond simple prevalence estimates, however, little research has been conducted on substance use in the school context. The present investigation was an in‐depth study of students' attitudes and behaviors regarding alcohol and marijuana use during the school day. Based on a representative sample of 1123 high school students, this study assessed the frequency of alcohol and marijuana use at school among demographic subgroups, the accessibility of drugs in school, and students' perceived consequences of being caught using drugs in school. The results showed that male and Hispanic students had higher levels of drug use at school than female and white students, respectively; that school drug use increased with age, and that alcohol and marijuana were easily obtained and used on school grounds. A large percentage of students were not aware of the specific actions taken in their schools to punish drug use. The need for additional research on school‐related drug use is emphasized.     

THE EFFECTS OF RECREATIONAL MARIJUANA LEGALIZATION AND DISPENSING ON OPIOID MORTALITY

This study documents how the changing legal status of marijuana has impacted mortality in the United States over the past two decades. We use a difference-in-difference approach to estimate the effect of medical marijuana laws (MML) and recreational marijuana laws (RML) on fatalities from opioid overdoses, and we find that marijuana access induces sharp reductions in opioid mortality rates. Our research corroborates prior findings on MMLs and offers the first causal estimates of RML impacts on opioid mortality to date, the latter of which is particularly important given that RMLs are far more expansive in scope and reach than MMLs. In our preferred econometric specification, we estimate that RMLs reduce annual opioid mortality in the range of 20%–35%, with particularly pronounced effects for synthetic opioids. In further analysis, we demonstrate how RML impacts vary among demographic groups, shedding light on the distributional consequences of these laws. Our findings are especially important and timely given the scale of the opioid crisis in the United States and simultaneously evolving attitudes and regulations on marijuana use. (JEL I18, K32, H75)     

Adolescents' beliefs about marijuana use: a comparison of regular users, past users and never/occasional users

A questionnaire investigating adolescents' opinions and experiences regarding marijuana use was administered to 163 adolescents and young adults (96 boys and 67 girls) aged 13 to 20 (mean age = 16.8, s.d. = 1.5). Items referred to marijuana and other substances' dangerousness, representations regarding the positive and negative consequences of marijuana use. Responses were compared according to marijuana use status (classified into never/occasional use, current regular use and past regular use). Results show that adolescents' opinions differ according to their experience with marijuana use. Current regular users evaluate marijuana as less dangerous, but alcohol and heroin as more dangerous in comparison with never/occasional and past users. Current and past users are more likely to define marijuana as a medical drug and a plant used in agriculture, and less likely to define it as an illegal drug. Current and past users evaluate marijuana use as a way to cope with stress, to relax to a greater extent than do never/occasional users do. The latter attribute more negative consequences to marijuana use such as diminished driving ability and school performance and a pathway to hard drugs.     

Sleep and Its Association With Socioeconomic Status,Health, and Risky Behaviors Among Ghanaian School Children

Socioeconomic differences in sleep and how sleep relates to health and risky behaviors among 12‐ to 18‐year‐old Ghanaians (N = 1,195) were investigated. Overall, 49.2% of boys and 60.8% of girls had inadequate sleep. Girls (OR = 1.6, 95% CI = 1.3–2.0) and older (16‐ to 18‐year‐olds) adolescents (OR = 1.6, 95% CI = 1.3–2.1) had higher probability of inadequate sleep than boys and younger (12‐ to 15‐year‐old) adolescents, respectively. High material affluence, low parental education, low parental occupational grade, drunkenness, marijuana use, drug use, and not having plans to continue schooling after graduation decreased the chances of inadequate sleep, while low school performance, low fruit and vegetable intake, and tiredness during daytime increased the probability of inadequate sleep. Promotion of adequate sleep and gender equality should be taken into consideration in adolescent health promotion programs.     

Substitution of marijuana for alcohol: the role of perceived access and harm

Research has shown significant declines in gateway drug use among participants in a school/community substance abuse prevention intervention in a midwestern, suburban school district (Lohrmann, Alter, Greene, & Younoszai, 2005). Though still at or below national levels, student marijuana use was not impacted as positively. The current study investigated the possibility that efforts to prevent alcohol use resulted in an unintentional substitution effect thereby increasing marijuana use. Factors including perceived access to alcohol and marijuana, along with perceived harm associated with alcohol and marijuana use, were examined to determine their role in marijuana use. Findings revealed a relationship between perceived access to and perceptions of harm associated with marijuana and its use that depended on the level of perceived access to and harm associated with alcohol.     

GETTING INTO THE WEEDS: DOES LEGAL MARIJUANA ACCESS BLUNT ACADEMIC PERFORMANCE IN COLLEGE?

This paper examines the effect of legal access to marijuana on student performance stemming from a voter-approved initiative legalizing marijuana for those 21 and older in the State of Washington. Using panel data from a medium-sized public university, we use a within-student and within-class estimator to show that legalization reduces students' grades, with an effect size about one-half the impact of gaining legal access to alcohol. Consistent with how marijuana consumption affects cognitive functioning, we find that students' grades fall furthest in courses that require more quantitative skills. These effects are largely driven by men and low performers. (JEL I23, I18, K32)