WEIGHING THE MILITARY OPTION: THE EFFECTS OF WARTIME CONDITIONS ON INVESTMENTS IN HUMAN CAPITAL

Serving in the military is an important vehicle through which young Americans invest in their human capital. As such, changes in the desirability of military service may affect the attainment of enlistment requirements, such as a high school degree or equivalent. Using American Community Survey data, we find that exposure to home‐state combat fatalities during the Iraq and Afghanistan Wars decreased the probability of high school completion, and increased the probability of general equivalency diploma completion. Using military data, we confirm that exposure to home‐state fatalities selectively deterred some individuals from enlisting. The results suggest military service and educational investments are complements. (JEL I20, I26, J24)     

The role of materiality: Knowing through objects in work practice

Based on the perspective of knowing in practice, this paper investigates the everyday work of engineers in a semiconductor plant. Qualitative data analysis is used to examine the active role of objects and how engineers rely on them to perform troubleshooting in the manufacturing processes. Three active roles emerged from the analysis: (a) objects activating interpretations, (b) objects stimulating collaborative practices, and (c) objects sparking experimental activities. Based on these three findings, we propose that objects have three triggering roles. First, objects trigger meaning-making. The meaning-making process provides a condition for better understanding the situation, making inferences, and developing possible diagnostic logics. Second, objects trigger spontaneous relationships. This role promotes social interaction, encourages members to cooperate, and to negotiate in the organization. Third, objects trigger real-time exploratory actions. These triggering roles of objects enable prioritization and execution of troubleshooting practice, based on the available information, actionable knowledge, and the situation at hand. Finally, these findings have important theoretical implications and indicate interesting future research directions related to the active role of objects in work practice.     

Reducing Periodicity of Fuzzy Markov Chains Based on Simulation Using Halton Sequence

We first introduce fuzzy finite Markov chains and present some of their fundamental properties based on possibility theory. We also bring in a way to convert fuzzy Markov chains to classic Markov chains. In addition, we simulate fuzzy Markov chain using different sizes. It is observed that the most of fuzzy Markov chains not only do have an ergodic behavior, but also they are periodic. Finally, using Halton quasi-random sequence we generate some fuzzy Markov chains, which are compared with the ones generated by the RAND function of MATLAB. Therefore, we improve the periodicity behavior of fuzzy Markov chains.     

A new non parametric estimator for Pdf based on inverse gamma distribution

ABSTRACT

The non parametric approach is considered to estimate probability density function (Pdf) which is supported on(0, ∞). This approach is the inverse gamma kernel. We show that it has same properties as gamma, reciprocal inverse Gaussian, and inverse Gaussian kernels such that it is free of the boundary bias, non negative, and it achieves the optimal rate of convergence for the mean integrated squared error. Also some properties of the estimator were established such as bias and variance. Comparison of the bandwidth selection methods for inverse gamma kernel estimation of Pdf is done.     

The effect of couples education on marital satisfaction in menopausal women

ABSTRACT

Inviting husbands to come to terms with women’s adaptation to the phenomenon of menopause is beneficial. The aim of this research was to uncover the effect of couples education on marital satisfaction. This study was performed on 80 menopausal women accompanied by their husbands. The intervention group received four sessions of couples education. The results showed that the mean increase in the rate of marital satisfaction after couples education in the intervention group was significantly higher than the control. Short-term couples education has a significant positive effect on marital satisfaction. Therefore, this counseling strategy can be integrated into health-care programs.     

Optimal Halton Sequence via Inversive Scrambling

In this article, we develop the Halton sequence of generating quasi-random numbers to an optimal sequence which has the inversive property. The new constructed quasi-random number generator satisfies the extra uniformity condition on [0, 1]. We finally present the performances of this generator in contrast to the former optimal Halton sequence in Chi et al. (2005 Chi, H., Mascagni, M. and Warnock, T. 2005. On the Optimal Halton Sequences. Math. Comput. in Simul., 70(1): 9–21. [Crossref], [Web of Science ®] , [Google Scholar]) and modified optimal Halton sequence in Fathi et al. (2009 Fathi, B., Samimi, H. and Eskandari, A. 2009. A New Efficient Algorithm for Linear Scrambling Halton Sequence. International Journal of Applied Mathematics, 22(7): 1059–1065.  [Google Scholar]).     

Perceptions and Experiences of Marriage Preparation Among U.S. Muslims: Multiple Voices from the Community

Although Muslims in the United States are a growing population, there is limited research on their relational patterns and how they prepare for marriage. We conducted in‐depth interviews with 32 members of the Muslim community in Southeast Michigan including married individuals, divorced individuals, therapists, and imams (Muslim religious leaders) to explore their perceptions and experiences of marriage preparation. Our analysis revealed that marriage preparation varies but is less likely to involve a requirement of premarital counseling, with imams being the primary providers, not therapists. Barriers to participation include stigma, lack of awareness, logistical and financial challenges, and parental influence. Partnerships between imams and therapists, and family and community efforts are necessary to address barriers and increase participation in premarital education programs.     

A Unified Approach to Ordering Comparison of GPS Distributions with their Mixtures

Recently, several authors have been concerned with ordering comparison of known distributions of the family of generalized power series (GPS) distributions with their mixtures in various senses. In this article, we shall employ a unified approach and obtain similar results, more generally, for all members of the class of the GPS distributions. Some of the previous findings of Misra et al. (2003 Misra , N. , Singh , H. , Harner , E. J. ( 2003 ). Stochastic comparisons of Poisson and binomial random variables with their mixtures . Statist. Probab. Lett. 65 : 279 – 290 .[Crossref], [Web of Science ®] , [Google Scholar]), Alamatsaz and Abbasi (2008 Alamatsaz , M. H. , Abbasi , S. ( 2008 ). Ordering comparison of negative binomial random variables with their mixtures . Statist. Probab. Lett. 78 : 2234 – 2239 . [Google Scholar]), and Aghababaei Jazi and Alamatsaz (2010 Aghababaei Jazi , M. , Alamatsaz , M. H. ( 2010 ). Ordering comparison of logarithmic series random variables with their mixtures . Commun. Statist. Theor. Meth. 39 : 3252 – 3263 .[Taylor & Francis Online], [Web of Science ®] , [Google Scholar]) in this connection, then, follow as corollaries. Further, we have derived some more ordering comparison results.     

The Impact of Migrant Remittances on School Attendance and Education Attainment: Evidence from Jordan

This paper evaluates the impact of migrant remittances on human capital accumulation among youth. An augmented human capital model with two outcomes, education attendance and education attainment, is estimated using a large nationally representative household survey from Jordan. Empirical results show that migrant remittance receipt has a positive effect on education attendance. This finding is obtained while controlling for other socio‐economic determinants of schooling behavior and is robust to censorship and endogeneity bias. The results also indicate that the magnitude of the remittance impact on both education outcomes is larger for men compared with that of women.