Estimating the probability of winning (losing) in a gambler's ruin problem with applications

In a classical gambler's ruin problem, the distribution of the number of games lost till ruin is considered, which we call the lost game distribution (LGD). Some applications of LGD in the theory of queues, in the theory of epidemic and in certain clustering and branching models are mentioned. The maximum likelihood estimation of LGD in the framework of modified power series distribution (MPSD), introduced by the author (1974), is studied. The variance and bias of the MLE are given and the actual mean of the MLE is obtained by discussing the negative moments of the MPSD in general. The minimum variance unbiased estimator of θ^k (k≥1) is obtained employing the technique developed by the author (1977) for the class of MPSD.     

Estimation of sensitivity level of personal interview survey questions

In this paper, an optional randomized response model is proposed. The estimator of the mean of the stigmatized variable based on the optional randomized response sampling is shown to be more efficient than the usual estimator of the mean based on randomized response technique method. In addition to estimating population mean and variance, it has been shown that the optional randomized response technique is useful in quantifying the sensitivity levels of the questions in the personal interview surveys. An estimator for the sensitivity level of a question is proposed and an empirical study is carried out to show the validity of the proposed estimation technique. We also propose a test for the sensitivity level of the stigmatized variable.     

Picturing Space for Lesbian Nonsexualities: Rethinking Sex-Normative Commitments through The Kids Are All Right (2010)

This article examines representations of lesbian nonsexuality in the film The Kids Are All Right and in responses to the film by feminist and queer scholars. In some moments, the film offers a limited endorsement of lesbian nonsexuality, placing pressure on the category lesbian to include nonsexuality and asexuality. However, in their responses to the film, many feminist and queer scholars rejected nonsexuality as an aspect of lesbian experience, placing pressure on the category lesbian to exclude nonsexual and asexual women. Asexual activism challenges scholars to question their sex-normative commitments and to keep the category lesbian open and flexible.     

Adolescent gambling and problem gambling: examination of an extended theory of planned behaviour

Adolescent problem gambling is acknowledged as a public health concern. To better understand adolescent gambling and problem gambling behaviour, the present study investigated the relationships between psychological correlates of gambling frequency and problem gambling using an extended theory of planned behaviour (TPB; i.e. intentions, attitudes, subjective norms, perceptions of behavioural control) that includes negative anticipated emotions as a factor associated with gambling intentions. Four hundred and nineteen high school students were surveyed in the Montreal (Canada) region. The findings generally support the applicability of an extended TPB model for explaining gambling behaviour frequency and gambling problems among adolescents. The results reveal that negative anticipated emotions, attitudes and perceptions of behavioural control influence gambling intentions. The results further reveal that intentions and attitudes have a direct relationship with gambling frequency, while intentions and perceptions of behavioural control are directly related to problem gambling behaviours. These findings suggest that adolescent problem gambling prevention and intervention efforts should consider targeting negative anticipated emotions and other TPB components in order to postpone initiation to gambling (a risk factor for problem gambling) and to promote gambling decision-making.     

Anxiety and social stress related to adolescent gambling behaviour

Abstract

This study examined the relationship between anxiety, social stress, and gambling behaviour among 1,044 high school students in grades 7 to 11. Adolescents completed questionnaires concerning their state, trait, and generalised anxiety, social stress, and gambling behaviour. Results reveal that adolescent probable pathological gamblers report more state anxiety, trait anxiety, and higher levels of social stress compared to non‐gamblers, social gamblers, and gamblers at‐risk for serious problems. Gamblers with high state and trait anxiety engaged in more severe gambling behaviours, greater substance abuse, reported different reasons for gambling, and endorsed more dissociation items. The results provide additional support for Jacobs’ (1986) General Theory of Addictions. The implications for treatment and prevention programs are discussed.     

Suicidality and depression among youth gamblers: a preliminary examination of three studies

Both suicide and problem gambling among youth are two growing areas of public health concern, though studies have yet to characterise the relationship between these issues. Youth report higher prevalence rates of problem gambling than adults, but no studies to date have investigated whether they are likewise prone to higher risks of gambling‐related suicidality. This article explores the relationship of depression, suicidality, and problem gambling in youth in three studies of middle and high‐school students (total N = 3,941; males n = 1,937, females n = 2,004) conducted in 1996, 2000, and 2001 in Quebec and Ontario. All studies reported significantly higher rates of suicidality among problem and pathological gamblers as compared to non‐gamblers and social gamblers, irrespective of gender, grade, or level of depression. The implications for future investigations are discussed.     

Culture,Intermarriage, and Immigrant Women's Labor Supply

We examine the impact of culture on the work behaviour of second‐generation immigrant women in Canada. We contribute to the literature by analysing the role of intermarriage in intergenerational transmission of culture and its effect on labour market outcomes. Using female labour force participation and total fertility rates in the country of ancestry as cultural proxies, we find that culture affects the female labour supply. Cultural proxies are significant in explaining number of hours worked by second‐generation women with immigrant parents. The impact of culture is significantly larger for women with immigrant parents who share the same ethnic background than for those with intermarried parents. The weaker effect of culture for women raised in intermarried families stresses the importance of intermarriage in assimilation process. Our findings imply that government policies targeting women's labour supply may have differential effects on the labour market behaviour of immigrant women of different ancestries.

Policy Implications

• The result that culture has statistically significant impact on second‐generation immigrant women's labour supply has policy implications in terms of the government programmes and benefits that target the labour supply of women and immigration policies in general.
• Our findings imply that government policies targeting women's labour supply may have differential influence on the labour market behaviour of second‐generation immigrant women of different ancestries.

     

An alternative formulation of the birth function in a two-sex model

The inconsistency in Lotka's stable population model (two different intrinsic growth rates for the two sexes) arises from the fact that he considers two equations (for male and female births), and not because his equation for one sex does not involve the other. Many authors in the past have erroneously put emphasis on the latter point and modified Lotka's equations for male and female births. Since sex ratio at birth is constant, two independent equations for male and female births cannot exist. The correct approach is to attempt to form an equation for all births. The author followed this approach in his earlier works on the problem, but his birth functions were formulated from axiomatic considerations. The present paper provides a new birth function which has an intuitively appealing physical interpretation, and for which the interaction between the sexes is empirically determined from the data.