Multivariate Chebyshev Inequality With Estimated Mean and Variance

A variant of the well-known Chebyshev inequality for scalar random variables can be formulated in the case where the mean and variance are estimated from samples. In this article, we present a generalization of this result to multiple dimensions where the only requirement is that the samples are independent and identically distributed. Furthermore, we show that as the number of samples tends to infinity our inequality converges to the theoretical multi-dimensional Chebyshev bound.     

Investigating a long tail in retail vehicle sales

The concept of the long tail in demand distributions has generated significant research interest because of its potential importance for producers, distributors and retailers. Studies to date have focused on information goods sold through internet channels. Here we study long tail effects in vehicle sales sold through conventional car dealerships. The willingness of customers to compromise on, and/or wait for their requested vehicle specifications are identified as critical factors in vehicle purchases. An extensive empirically based simulation study is conducted to investigate these demand-side factors. The results show how the characteristics of the customer population affect the observed pattern in vehicle sales. The interaction effects of supply-side factors are also highlighted, in particular the effect of the replenishment policy used in the fulfillment system. The study also analyzes the distortion of the underlying demand signal in the sales distribution and the lead time and degree of compromise experienced by different customer populations. Significant managerial implications are highlighted, including the dangers of using the sales distribution as a definitive indicator of demand, the need for the order fulfillment process to align with the characteristics of the market, and the negative effects of focusing replenishment on a small subset of the most popular variants.     

Pushing the Boundaries: Responses to Ethnic Conformity Pressure in Two Turkish Communities in Belgium

Previous research has demonstrated that ethnic communities try to maintain ethnic boundaries through group pressure to conform to premigration cultural patterns, which mainly happens indirectly through social control. So far however, little attention has been given to how group members respond to this indirect ethnic conformity pressure, as well as to the factors that shape these responses. Drawing on in-depth interviews with second- and third-generation Turkish Belgians, we examine and explain different responses to ethnic conformity pressure and link these to ethno-cultural change and boundary change. We distinguish three negotiation strategies, namely conformity, creativity and disregard, and find that the choice for a particular strategy is first and foremost shaped by the agent’s gender, their embeddedness in the Turkish community, and the availability of an alternative support network, both of which are shaped by exclusion in the larger society. In addition, also the severity of the norm violation, the social structure of the community and parental expectations play a role. Findings are interpreted in terms of ethnic boundary dynamics, and implications for ethno-cultural change are discussed.     

Balinese cultural identity and global tourism: the Garuda Wisnu Kencana Cultural Park

ABSTRACT

The island of Bali has been inextricably bound up with the tourism industry. This article examines the dynamic Balinese cultural identity and its ever changing relationship with tourism in the age of globalism through the analysis of a case study: the construction of the Garuda Wisnu Kencana Cultural Park (between 1993–2018), containing an enormous statue of the Hindu God Wisnu mounting the magical bird Garuda. The park and statue can be seen as a new cultural landmark for the Indonesian nation and for the Balinese tourism industry. However, the case study of the park also shows how Bali has changed its role within the Indonesian archipelago since the fall of the Suharto regime in 1998 while dealing with new challenges of global tourism. Representations of a Balinese cultural identity have evolved from national, top-down level constructions of ‘cultural tourism’ into a global tourist destination through hosting international events at the park.     

Learning by Interaction: Absorptive Capacity, Cognitive Distance and Governance

This article analyses problems and solutions in thegovernance of knowledge exchange and joint knowledgeproduction. The analysis is based on a theory whichcombines elements of transaction cost economics,social exchange theory and theory of knowledge. Thetheory of knowledge yields an analysis of absorptivecapacity, communicative capacity and learning byinteraction. In that setting, the paper analysesproblems of governance: hold-up problems as a resultof specific investments in setting up knowledgeexchange, spill-over problems, a trade-off betweenstability and change of exchange relations, and atrade-off between novelty and understandability(`cognitive distance'). A survey is given ofcontingencies that affect the size of problems and theefficacy of instruments for their governance.     

The Rise of Age Homogamy in 19th Century Western Europe

In many parts of Western Europe the age at first marriage and the level of celibacy declined in the second half of the 19th century. This weakening of the European marriage pattern (EMP) can be interpreted as a “classic” response to the increase of the standard of living, but a more far‐reaching interpretation is that the erosion of the EMP was part of a cultural shift characterized by the rise of a new, less instrumental and more egalitarian view on marriage and partner selection. The latter vision implies the increase of the preference for a same age marriage. We test this explanation by using a combined Belgian‐Dutch data set of marriage certificates (N = 766,412). Our findings corroborate the “cultural shift thesis.”     

Work–family conflict: comparing the experiences of Turkish and native Belgian women

ABSTRACT

While research has focused on a number of dimensions of work–family conflict (WFC), hardly any literature exists that analyses how differences in family systems might help to explain variations in WFC experiences. By employing Reher’s typology of strong and weak family ties to integrate existing research and identify unaddressed features, this study finds that researchers have generally understudied the role of structural family ties on WFC. Qualitative data gathered from interviews with highly educated native Belgian and Turkish immigrant women living in Belgium are used to analyse variation in the WFC experiences and coping strategies of these two groups. The results suggest that a number of interconnected factors related to family systems – including internalisation of gender roles, division of family-related responsibilities, support mechanisms and external pressures from family and society, and socialisation processes of minority women in both family structures – are highly significant in explaining variations in women’s WFC experiences.     

Motor Function and Social Participation in Kindergarten Children

This study focused on the associations between individual variations in children’s motor abilities and individual differences in social participation and play behavior. Indoor and outdoor play behavior patterns of 88 kindergarten children were observed, and a battery of standard assessments of basic motor functions was administered. The findings indicate significant associations between children’s motor abilities and social and nonsocial forms of play. Results are discussed in relation to existing conceptual models of the underlying causes for nonsocial behavior.