Estimation in a linear regression model with stochastic linear restrictions: a new two-parameter-weighted mixed estimator

The present paper considers the weighted mixed regression estimation of the coefficient vector in a linear regression model with stochastic linear restrictions binding the regression coefficients. We introduce a new two-parameter-weighted mixed estimator (TPWME) by unifying the weighted mixed estimator of Schaffrin and Toutenburg [1] and the two-parameter estimator (TPE) of Özkale and Kaç?ranlar [2]. This new estimator is a general estimator which includes the weighted mixed estimator, the TPE and the restricted two-parameter estimator (RTPE) proposed by Özkale and Kaç?ranlar [2] as special cases. Furthermore, we compare the TPWME with the weighted mixed estimator and the TPE with respect to the matrix mean square error criterion. A numerical example and a Monte Carlo simulation experiment are presented by using different estimators of the biasing parameters to illustrate some of the theoretical results.     

Competitive Strategies and Firm Performance: a Comparative Analysis of Pure,Hybrid and ‘Stuck‐in‐the‐middle’ Strategies in Spanish Firms

The purpose of this study was to examine the viability of hybrid competitive strategies, which combine differentiation and cost elements, and their impact on organizational performance in comparison to pure strategies and ‘stuck‐in‐the‐middle’ combinations. Previous studies have focused above all on US data. The analysis carried out in this paper has centred on a multisectorial sample of 164 Spanish firms. The findings show that a large number of the organizations use different types of hybrid strategies and also that such strategies tend to be associated with higher levels of firm performance, particularly those strategies which place emphasis on a greater number of strategic dimensions, and specifically on innovation differentiation.     

Countervailing institutional forces: corporate governance in Turkish family business groups

This longitudinal study investigates the impact of national and international pressures to improve corporate governance in an emerging economy from an institutional theory perspective. Recently, family business groups (FBGs), the dominant form of organizing in emerging economies, have been criticized by policy makers for their poor governance structures. A common recommendation to FBGs has been increasing the number of independent, outsider directors on their boards. Thus, change in the board compositions of the quoted subsidiaries of the six biggest FBGs is analyzed over 2002–2006. One-way-ANOVA and t-tests were used as statistical tools. Findings reveal that there has not been a statistically significant change in board compositions over the research period. FBGs were found to resist institutional pressures through ‘avoidance’, ‘defiance’ and “manipulation” strategies due to the absence of coercive pressures and multiple forms of ‘institutional work’ for change.     

Significant others and the dynamics of the family network (from the Proches et Parents survey to the Biographies et Entourage survey)

With the increase in separations, family recomposition, and new modes of cohabitation, the contours of the family have become less clearly defined. It has become important to separate the family group from its statistical framework – the household – while taking account, in both time and space, of the interpersonal relationships built up over the life-course. In response to these objectives, the French National Institute of Demographic Studies (INED) conducted two surveys, Proches et Parents in 1990 and Biographies et Entourage in 2001, which use new concepts to address these new family realities: the local family circle which, for an individual, includes family members living in the same municipality, with whom he/she has a close and strong relationship in terms of mutual support and regular contact, and the concept of entourage (contact circle), which includes close relatives, all co-resident persons, whether relatives or not, but also significant others who have marked the individual's life. Far from being limited to the immediate family, the universe of familial and elective relationships covers a much more complex reality whose contours may be limited to the family or extended to a wider circle of relatives and friends. It describes an affective and residential proximity that reveals a mutual support network of varying strength, which may or may not be solicited, which may be avoided or, on the contrary, revived in response to events affecting its members.     

Ethical leadership,intrapreneurship, service innovation performance and work engagement in chambers of commerce and industry

ABSTRACT

The main purpose of this study which examines how it can be more effective in terms of organizational and managerial aspects with chambers of commerce and industry affiliated to The Union of Chambers and Commodity Exchanges of Turkey is to analyze the relationships between ethical leadership, work engagement, intrapreneurship, and service innovation behavior. In addition, it is to determine the role of mediation of work engagement effecting on intrapreneurship and service innovation behavior. For this purpose, quantitative analysis methods have been adopted. The data collected from 568 employees who were employed in chambers of commerce and industry operating in Turkey were analyzed. For the validity and reliability of the measurement tools, confirmatory factor analysis, the model’s good fit values and the AMOS Structural Equation Model were used. It was found that ethical leadership had statistically significant effect on employee engagement, intrapreneurship and the subscales of service innovation behavior (employee service innovation behavior and new service development). The results showed that work engagement partially mediated with ethical leadership effecting on intrapreneurship, ethical leadership effecting on the subscales of service innovation behavior. It is thought that the study is important in terms of providing empirical contributions to the ethical leadership, service innovation, intrapreneurship and work engagement literature. Finally, there are some limitations of the study and some suggestions are offered for future studies.     

Parents' Partnership Decision Making After Divorce or Widowhood: The Role of (Step)Children

Using data from the Netherlands Kinship Panel Surveys, this study investigated divorced and widowed parents' (N = 350) decision making about living arrangements after repartnering: Twenty‐eight percent lived apart together (LAT) and others lived together (remarried or cohabiting). The focus was on determinants of LAT: Women, older respondents, residents of larger cities, and parents of 2 or more children are more apt to LAT. On the basis of additional qualitative interviews with LAT respondents (n = 25), the reasons for LAT were investigated. Data showed that many children are involved in pure boundary work in an effort to guarantee the continuation of their family. Other (step)children use the sabotage or refusal types of boundary work, not accepting the new partner or excluding a parent from contact, especially with grandchildren. Many of these efforts are successful. To preserve the ties with their children, parents often adapt their decision making about the living arrangements with a new partner accordingly.     

Demographic Characteristics

This article aims to describe the characteristics of and design elements in gardens/patios at 87 residential living homes for older people and to describe and compare residents’ and staff members’ perceptions of outdoor spaces. The aim was also to investigate factors related to residents' satisfaction with and stays in the garden/patio. The result showed that many gardens/patios had several recommended design elements and, at the same time, obvious deficiencies. The residents (n = 415) valued various aspects of the garden/patio more highly than did the staff (n = 667). Managers responsible for residential living homes for elderly people should take measures to ameliorate deficiencies and deficient elements in design and accessibility that are lacking so that the garden/patio can be used as an important health promotion resource in the care of elderly people. Residents and staff are important actors in such development work.     

On recursive solutions to simple allocation problems

We propose and axiomatically analyze a class of rational solutions to simple allocation problems where a policy-maker allocates an endowment $E$ among $n$ agents described by a characteristic vector c. We propose a class of recursive rules which mimic a decision process where the policy-maker initially starts with a reference allocation of $E$ in mind and then uses the data of the problem to recursively adjust his previous allocation decisions. We show that recursive rules uniquely satisfy rationality, c-continuity, and other-c monotonicity. We also show that a well-known member of this class, the Equal Gains rule, uniquely satisfies rationality, c-continuity, and equal treatment of equals.     

Urbanization and the fertility transition in Ghana

This paper examines the way in which migration and urban residence operate to alter fertility outcomes. While urban-rural fertility differentials have long been established for most developing societies, the nature of these differences among migrants and between migrants and those of succeeding generations is not well understood. The evidence presented here suggests that rural-urban migration and urbanization may contribute positively to processes of fertility transition. Using data from the 1998 Kumasi Peri-Urban Survey, which included a 5-year retrospective monthly calendar of childbearing, we suggest that migrants adapt quickly to an urban environment. Our results also reveal generational differences in recent and cumulative fertility. While migrants exhibit higher cumulative fertility than urban residents of the second and third generation, their fertility is significantly lower than rural averages in Ghana. Children of migrants exhibit childbearing patterns quite similar to those in higher-order generations. Most noteworthy is the nature of the disparities in childbearing patterns between migrants and the succeeding generations. Migrant women have higher lifetime fertility than urban natives. Migrant women also exhibit higher fertility over the last 5 years than second generation or high-order urban natives. But these first generation women exhibit lower fertility (vs. urban natives) for the year immediately prior to the survey. These patterns lend support to an interpretation that combines rather than opposes theories of selectivity, disruption, adaptation and socialization. We conclude by discussing mechanisms that might explain these interrelated processes of fertility adjustment and suggest that policies discouraging rural-urban migration need to be revisited.