Changes in Suicide and Divorce in New Casino Jurisdictions

Using county-level data, this study examines the impact that the introduction of casino gambling has on suicide and divorce. Eight communities that adopted casino gambling between 1991 and 1994 are compared with a matched set of control counties, jurisdictions that are economically and demographically similar to the casino counties. Suicide rates are not statistically different between casino and control communities. Divorce rates are lower in three casinos counties, higher in one, and not statistically different in four. Overall, the results suggest no widespread, statistically significant increase in either suicide or divorce. Possible explanations for the results are provided.     

Gambling Participation and Social Support Among Older Adults: A Longitudinal Community Study

The purpose of this preliminary study was to examine associations between leaving home to engage in bingo or gambling activity and indices of physical and mental health and social support among a representative community cohort of 1016 elderly people. Cross-sectional and longitudinal data gathered from a prospective epidemiological study in a rural, low socio-economic status, area of Pennsylvania was employed. The cohort had a mean age of 78.8 (SD = 5.1) (range 71–97) and participated in three consecutive biennial waves of data collection. Nearly half (47.7) of the cohort reported gambling. To predict gambling, the independent variables included age, sex, education, employment, social support, depressive symptoms, self-rated health, alcohol use, cigarette use, and cognitive functioning. In cross-sectional, univariate analyses, gambling was associated with younger age, sex (male), fewer years of education, greater social support, lower depression scores, better self-rated health, alcohol use in the past year, and higher cognitive functioning. In a cross-sectional multiple regression model, younger age, greater social support, and alcohol use in the past year remain strongly and independently associated with gambling activity. Longitudinally, age, sex, social support, alcohol use, and gambling are predictive of future gambling activity. The results revealed that gambling may offer a forum of social support to older adults who are often isolated as they age.     

Cohabitation and Marriage in a Risky World

Different couples are analyzed in presence of income uncertainty and precautionary saving. Married couples have legal restrictions on their relationship that force them to act cooperatively, while cohabitants with limited commitment act non-cooperatively. This makes risk sharing different for different couples; married couples share risk completely, while cohabitants share risk to a lesser extent due to their lack of commitment and cooperation. This makes precautionary savings greater for cohabitants than for married couples. However, cohabitants also tend to undersave to possibly increase assistance from their partner. However, mutual altruism mitigates the inefficiencies and enforces time consistent risk sharing among cohabitants.I am thankful to Jonas Agell, Sophia Grahn-Voorneveld, Peter Kooreman and to Mats Persson for valuable comments on an earlier version. I have also received useful comments from the editor and from two anonymous referees. Generous financial support from the Jan Wallander and Tom Hedelius Foundation and from Knut and Alice Wallenbergs Foundation is gratefully acknowledged.     

Labor Supply by Farm Operators Under “Decoupled” Farm Program Payments

As part of 1996 legislation, the U.S. began paying farmers production flexibility contract payments designed to be somewhat decoupled from current production decisions. In the labor-leisure model, decoupled payments would be expected to only have a wealth effect, but coupled payments would be expected to have both a substitution and a wealth effect. In this paper, the impacts of the decoupled payments and other government payments on both farm and off-farm labor allocations for farm operators are considered using data from the Agricultural Resource Management Survey (ARMS). Results indicate that government payments tend to increase the hours operators work on their farm and decrease the hours they work off the farm. This is true whether the payments come from programs which tie payments to current year production, or not.JEL Classification: D13, J22, Q12, Q22The authors are agricultural economists with the Economic Research Service (USDA). The views expressed here do not necessarily represent the views of the U.S. Department of Agriculture.     

Wissen managen in Wirtschaftsunternehmen

Since our society has developed to a so called knowledge society, businesses are increasingly recommended to use their knowledge resources in an effective and goal-oriented way in order to ensure their competitiveness and survivability. For this purpose, the choice of instruments should be based on the specific areas and requirements that knowledge management should find answers to.Taking into consideration the success prerequisites and avoiding failure traps can make knowledge management provide valuable and often fallow richness.     

Literatur / Books

Buchbesprechungen / Book reviews

Literatur / Books     

The geometrical interpretation of statistical tests in multivariate linear regression

A geometrical interpretation of the classical tests of the relation between two sets of variables is presented. One of the variable sets may be considered as fixed and then we have a multivariate regression model. When the Wilks’ lambda distribution is viewed geometrically it is obvious that the two special cases, theF distribution and the HotellingT ² distribution are equivalent. From the geometrical perspective it is also obvious that the test statistic and thep-value are unchanged if the responses and the predictors are interchanged.     

Forward and Backward Recurrence Times and Length Biased Sampling: Age Specific Models

Consider a chronic disease process which is beginning to be observed at a point in chronological time. The backward recurrence and forward recurrence times are defined for prevalent cases as the time with disease and the time to leave the disease state, respectively, where the reference point is the point in time at which the disease process is being observed. In this setting the incidence of disease affects the recurrence time distributions. In addition, the survival of prevalent cases will tend to be greater than the population with disease due to length biased sampling. A similar problem arises in models for the early detection of disease. In this case the backward recurrence time is how long an individual has had disease before detection and the forward recurrence time is the time gained by early diagnosis, i.e., until the disease becomes clinical by exhibiting signs or symptoms. In these examples the incidence of disease may be age related resulting in a non-stationary process. The resulting recurrence time distributions are derived as well as some generalization of length-biased sampling.     

Frailty Models for Arbitrarily Censored and Truncated Data

In this paper, we propose a frailty model for statistical inference in the case where we are faced with arbitrarily censored and truncated data. Our results extend those of Alioum and Commenges (1996), who developed a method of fitting a proportional hazards model to data of this kind. We discuss the identifiability of the regression coefficients involved in the model which are the parameters of interest, as well as the identifiability of the baseline cumulative hazard function of the model which plays the role of the infinite dimensional nuisance parameter. We illustrate our method with the use of simulated data as well as with a set of real data on transfusion-related AIDS.