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51.
Reaching universal health‐care coverage requires an appropriate mix of compulsory contributory social insurance schemes, with mechanisms to include the informal‐economy population, and tax‐based social assistance for those whose incomes preclude their own contributions. This article urges a reversal of the trend that favours the separate development of social health insurance by separate health authorities and makes the case for the extension of health‐care coverage using existing formal‐sector social security schemes, not least because they have the necessary political backing and institutional structures. The article reviews reasons for the slow pace of coverage extension to date, and stresses the added value of incorporating health care as a social security benefit while also acknowledging the importance of retaining linkages between statutory and well‐regulated community‐based or micro health‐insurance schemes.  相似文献   
52.
Sensation seeking and impulsivity are two constructs of personality that are generally believed to be associated with risky behavior, including gambling. Despite the fact that pathological gambling is classified as an Impulsive Control Disorder in the DSM-IV, relatively little empirical research has investigated the relationship between gambling and impulsivity. The purpose of this study was to investigate the relationship between sensation seeking, impulsivity, risky behaviors and gambling. One hundred and forty-four male undergraduate university students completed several inventories measuring sensation seeking, impulsivity, gambling, and risky behaviors. Statistical analyses revealed a very high percentage of participants were classified in the pathological gambler range of scores. In addition, a significant difference was found between the relationships of sensation seeking, impulsivity, and risky behaviors with gambling scores in the pathological versus non-pathological groups. Pathological gambler's scores on measures of sensation seeking and impulsivity did not correlate with their degree of gambling pathology. In contrast, the sensation seeking and impulsivity scores of non-pathological gamblers did correlate with their scores of gambling pathology. These results have implications on Jacob's General Theory of Addiction. The findings of this study also suggest that the classification of gambling as an impulse control disorder rather than an addictive disorder needs to be reevaluated.  相似文献   
53.
Many cannabis users ‘mature out’ of their drug use, and factors of cannabis use cessation have been identified. However, very little in-depth knowledge is available about the mechanisms underlying this phenomenon. Criminological studies have gained interesting insights in desistance from crime, yet these perspectives are rarely used in drug research. This qualitative, three-year longitudinal study explored the processes involved in desistance from frequent cannabis use for young adults. Using a narrative approach, desisters (frequent users who successfully quit their cannabis use) and persisters (frequent users with a persistent desire and unsuccessful attempts to quit) were compared. In the course of the study, desisters mainly exhibited increasing agency and goal setting, established strategies to achieve these goals, and could envision another self. Desistance was generally induced by life events that became turning points. Persisters experienced largely similar events, but lacked goals and strategies and held external factors responsible for their life course and failed quit attempts. Identity change is at the core of desistance from frequent cannabis use, and the meaning-giving to life events and experiences is essential. Agency is a necessary ingredient for desistance, develops over time and through action, and leads to a new drug-free identity with desistance in turn increasing agency.  相似文献   
54.
Large Contests     
We consider contests with many, possibly heterogeneous, players and prizes, and show that the equilibrium outcomes of such contests are approximated by the outcomes of mechanisms that implement the assortative allocation in an environment with a single agent that has a continuum of possible types. This makes it possible to easily approximate the equilibria of contests whose exact equilibrium characterization is complicated, as well as the equilibria of contests for which there is no existing equilibrium characterization.  相似文献   
55.
This study extends the current state of research on venture capital (VC) determinants by introducing a behavioral perspective. We focus on individuals’ risk perception and connect it to Hofstede’s cultural dimensions of individualism and uncertainty avoidance. Individualism is related to overoptimism and uncertainty avoidance is related to overcaution, and hence affect the perception of risk. In a cross-country empirical analysis with 49 countries, we find that individualism is positively associated with VC activity, whereas uncertainty avoidance is negatively associated with VC activity. Our results are robust to controlling for other determinants as well as using other proxies of VC activity, other time periods, and subsamples of countries.  相似文献   
56.
The anti-Ramsey number AR(GH) is defined to be the maximum number of colors in an edge coloring of G which doesn’t contain any rainbow subgraphs isomorphic to H. It is clear that there is an \(AR(K_{m,n},kK_2)\)-edge-coloring of \(K_{m,n}\) that doesn’t contain any rainbow \(kK_2\). In this paper, we show the uniqueness of this kind of \(AR(K_{m,n},kK_2)\)-edge-coloring of \(K_{m,n}\).  相似文献   
57.
58.
Research commissioned for the UK's Health & Safety Executive (HSE) supports the view that a preventative, risk-assessment based approach would be more effective than case-based methods in achieving a nationwide reduction in work-related stress. The background to this approach is described and discussed in a companion paper in this issue (Mackay, Cousins, Kelly, Lee, & McCaig, 2004). The present paper describes the development of HSE's new stress Management Standards—which offer organizations continuous improvement through a three-phase stress preventative process—and the development of a supporting 'Indicator Tool' (a two-phase questionnaire to assess employee perceptions of working conditions). The Management Standards comprise a series of 'states to be achieved', which are statements of good practice in six key stressor areas: demands, control, support, relationships, role and organizational change. For each stressor area there is also a 'platform statement' that outlines the main aims to be achieved by the organization. This statement may include a target percentage of employees finding that the organization meets the standard: this matter will be settled after the standards have been assessed in a public consultation campaign. To use the new process, an organization's state can first be assessed using the Indicator Tool; liaising with workers in focus groups enables a further exploration of issues raised; finally, there may be formulation of interventions and subsequent review. It is not intended that the standards will be legally enforceable. HSE's aim is that they and the associated methodology will enable organizations to effectively tackle work-related stress, and subsequently reduce both its incidence and prevalence.  相似文献   
59.
Polygraph testing is becoming increasingly important in sex offender treatment. Polygraph advocates cite dramatic increases in historical disclosures that presumably allow more precise targeting of treatment interventions, earlier detection of risky behaviors that often lead to new offenses, and improved treatment and supervision compliance. Based on this, they believe the procedure supports desirable behavior that continues to various degrees after treatment and supervision end. Opponents cite ethical problems related to inaccurate results, unproven accuracy rates, and the risk that examinees may be coerced into making false admissions. To counter these criticisms, proponents have developed standards, best practices, and examiner training and certification programs intended to reduce error rates and address ethical issues. Opponents argue that these measures have not been tested and that empirically established error rates and best practices may not be possible for a variety of reasons. This article reviews the current situation, leaving readers to decide the wisdom and ethics of using polygraph testing in their own practices.  相似文献   
60.
One of the most significant theoretical contributions to welfare analysis across a range of disciplines has been the development of the capabilities framework by Sen and others. Motivated by the claim that freedom should play a key role in social evaluation, the capabilities framework suggests that we consider what it is that people are free to do, as well as what they actually do. Using data from the British Household Panel Survey in conjunction with a list of substantial values posited by Martha Nussbaum, we contribute to the operationalisation and testing of this approach. Specifically, we suggest that commonly used secondary data sources do provide some information about the capabilities people have and that this can be incorporated into models of (subjective) well-being such as those used by a growing number of labour and health economists. We find evidence that a wide range of capabilities exhibit statistically significant relations to well-being that the relations are complex and slightly different for men and women, and conclude with suggestions for future developments.  相似文献   
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