The views expressed herein are those of the authors and do not necessarily represent the view of Coffey International Development, the consortium members of GSDRC or DFID. This consultancy assesses current migration research to determine the key factors which need to be considered in order to better understand the drivers of migration for poor people, as well as the social and economic costs an...

There is an ongoing debate over the activities of brands and companies in social media. Some researchers believe social media provide a unique opportunity for brands to foster their relationships with customers, while others believe the contrary. Taking the perspective of the brand community building plus the brand trust and loyalty literatures, our goal is to show how brand communities based o...

In [9], the author introduced quasirandom permutations, permutations of Zn which map intervals to sets with low discrepancy. Here we show that several natural number-theoretic permutations are quasirandom, some very strongly so. Quasirandomness is established via discrete Fourier analysis and the ErdősTurán inequality, as well as by other means. We apply our results on Sós permutations to make ...

Making decisions in the context of risk is an integral part of psychiatric work. Despite this, decisionmaking skills are rarely systematically taught and the processes behind decisions are rarely made explicit. This article attempts to apply contemporary evidence from cognitive and social psychology to common dilemmas faced by psychiatrists when assessing and managing risk. It argues that clini...

We consider bounds on the smallest possible root with a specified argument φ of a power series f(z) = 1 + ∑∞ n=1aiz i with coefficients ai in the interval [−g, g]. We describe the form that the extremal power series must take and hence give an algorithm for computing the optimal root when φ/2π is rational. When g ≥ 2√2 + 3 we show that the smallest disc containing two roots has radius ( √ g + 1...

Social-networking sites have become an integral part of many users’ daily internet routine. Commercial enterprises have been quick to recognize this and are subsequently creating profiles for many of their products and services. Commercial enterprises use social network profiles to target and interact with potential customers as well as to provide a gateway for users of the product or service t...

In the information age, online collaboration and social networks are of increasing importance and quickly becoming an integral part of our lifestyle. In business, social networking can be a powerful tool to expand a customer network to which a company can sell products and services, or find new partners / employees in a more trustworthy and targeted manner. Identifying new friends or partners, ...

Online learning has grown dramatically over the past few years and has become an integral part of most of the higher education institutions’ overall strategy. While this explosive growth has created exciting opportunities for both institutions and students, high dropout rates in online learning environments continues to be a major concern for all institutions. Research has identified lack of so...

Gibbard [Gibbard, A., 1973. Manipulation of voting schemes: a general result. Econometrica 41, 587– 602] and Satterthwaite [Satterthwaite, M., 1975. Strategy-proofness and Arrow's conditions: existence and correspondence theorems for voting procedures and social welfare functions. Journal of Economic Theory 10,187–217] show that an anonymous social choice function with more than two alternative...

Old welfare economics, Pigou (1920), considered social welfare as a cardinal notion, while new welfare economics,1 Little (1950) and Graaff (1957), consider social welfare as an ordinal notion. An in depth introduction to welfare economics and a discussion of the transition from old to new welfare economics, is expounded quite well by Samuelson (1947, Chap. 8, pp. 203–219, and pp. 249–252). For...