New technologies, new work practices and the age structure of the workers

There is empirical evidence that suggests that both technology and new work practices are skill-biased. In this paper, we analyse whether they are also age-biased. Does the introduction of new technology and new work practices reduce the demand for older workers and increase the demand for younger workers? The cross-section estimates suggest that technology is age-biased towards young, low-skilled workers. However, after sweeping away time-invariant unobserved firm effects by using a fixed effect approach, most of the significant relationships disappear. This suggests that the significant cross-section results are driven by unobserved heterogeneity between firms and are not causal effects of technology and new work practices on the demand for workers in different age groups.     

Perfect linear models and perfect parametric functions

General linear models with a common design matrix and with various structures of the variance–covariance matrix are considered. We say that a model is perfect for a linearly estimable parametric function, or the function is perfect in the model, if there exists the best linear unbiased estimator. All perfect models for a given function and all perfect functions in a given model are characterized.     

Friendship ties and geographical mobility: evidence from Great Britain

Summary.  A common finding in analyses of geographic mobility is a strong association between past movement and current mobility. We argue that one of the driving forces behind this pattern is the strength of local social ties outside the household. We use data from the British Household Panel Survey on the location of the three closest friends and the frequency of meetings with them. We estimate the processes of friendship formation and residential mobility jointly, allowing for correlation between the two processes. Our results show that a larger number of close friends living nearby substantially reduces movement of 20 miles or more.     

The exclusion of older people in disability activism and policies — A case of inadvertent ageism?

Using Sweden as a case, the article discusses the tendency within disability activism and policies to overlook elderly people. From an analysis of a major Swedish government investigation on disability it is clear that disability policies in Sweden have come to rest upon stereotyped age norms that divide the life course into set stages, and there has been a tendency to define elderly disabled people as elderly rather than disabled. It is argued that this exclusion is partly the result of a successful endeavor to provide disabled people of younger ages with rights that are typical of non-disabled citizens. Justice and equality have been defined in comparison to citizens of similar ages: children, youth and adults of “active age”. Based on the analysis of the paper it is argued that activities of movements struggling to liberate oppressed populations may contribute to ageism, and that anti-ageist research must go beyond the idea that ageism is a simple matter of attitudes towards older people.     

On directional Metropolis–Hastings algorithms

New Metropolis–Hastings algorithms using directional updates are introduced in this paper. Each iteration of a directional Metropolis–Hastings algorithm consists of three steps (i) generate a line by sampling an auxiliary variable, (ii) propose a new state along the line, and (iii) accept/reject according to the Metropolis–Hastings acceptance probability. We consider two classes of directional updates. The first uses a point in ⁿ as auxiliary variable, the second an auxiliary direction vector. The proposed algorithms generalize previous directional updating schemes since we allow the distribution of the auxiliary variable to depend on properties of the target at the current state. By letting the proposal distribution along the line depend on the density of the auxiliary variable, we identify proposal mechanisms that give unit acceptance rate. When we use direction vector as auxiliary variable, we get the advantageous effect of large moves in the Markov chain and hence the autocorrelation length of the samples is small. We apply the directional Metropolis–Hastings algorithms to a Gaussian example, a mixture of Gaussian densities, and a Bayesian model for seismic data.     

Undoing Islamophobia: Awareness of Orientalism in Social Work

Islamophobia describes the racism, exploitation, and violence experienced by Arabs, individuals of Arab descent, and Muslims. Although social workers are meant to challenge social injustice, social work codes of ethics and the literature are without guidance for unlearning Islamophobia. Arguing that one’s ability to interrupt Islamophobia is strengthened by an understanding of the historical record and theoretical tenets of Orientalism, we offer social workers explicit linkages between Orientalism and Islamophobia and engage with the idea of Islamo-racism. In this article, we attend to the ways in which Orientalism is used to “other” individuals while strengthening white hegemony, and we link those processes with Islamophobia and Islamo-racism. We conclude with some strategies derived from postcolonial theory to disrupt Islamophobia.     

Framing the tribal: ethnic violence in Northeast India

This article examines the framing of ‘ethnic conflict’ in Northeast India, focusing on militant groups and insurgency in the hill areas of Assam and a form of political violence known locally as ‘ethnic clashes’. The article argues that ‘ethnic clashes’ have become an institutionalized form of armed violence in the region, while ‘ethnic rivalry’ is a key diagnostic frame for conflict. As enactments and imaginaries of institutionalized violence, ‘ethnic clashes’ are a product of actors who hold stakes in representing armed political violence as a result of ‘ethnic conflict’ between rivaling tribal communities. The article looks at the representation of causes of conflict as well as the framing of acts of violence as key sites of contestation, and thus as integral aspects of the conflict. This raises questions about the feasibility of scholarly efforts to make sense of specific cases of conflict via generic categories such as the ‘ethnic conflict’.     

Truth and Indigenous Cosmopolitics in Shangrila

As this article shows, cadres involved in the ‘discovery’ of Shangrila in Yunnan were well aware of the fictional origins of the name. In arguments for changing the name of Zhongdian county to Xianggelila, scientific facts were coupled with literary truths about the Shangri-La of the 1930s novel Lost Horizon, grounded in material reality. In their efforts to make Shangrila meaningful locally, cadres associated Shangrila with the hidden land of Shambhala, appealing to a spiritual reality ultimately knowable only to visionaries. We can thus talk about three different logics of truth (scientific, literary and visionary) and two different realities (material and spiritual) of concern to the ‘making up’ of Shangrila.