Homophily and heterophily in personal networks. From mutual acquaintance to relationship intensity

This article deals with the analysis of homophily and heterophily in ego-centred networks (personal networks). The analysis takes a dual approach. First it uses the classical definition of homophily (in this article called elementary homophily) to compare mutual ties between groups defined by employment status, age and city of residence. These analyses are then enriched by incorporating the level of affective proximity, thus forming what we have called specific homophily. The analysis of elementary homophily confirms the expected predominance of homophilous relationships over heterophilous ones. The analysis of specific homophily shows that inter-group relationships between close and intimate contacts follow similar patterns, whereas these differ substantially for relationships that are not at all close. The comparison of the two types of homophily shows a correspondence between high values in elementary homophily and high values in close and intimate relationships.     

Institutionalization and Depoliticization of the Right to the City: Changing Scenarios for Radical Social Movements

The right to the city, a concept previously associated with radical social movements, has been accepted by several governments and has inspired new public policies. However, some authors see this process of institutionalization as involving a loss of a significant part of the radical origins of the concept. This article approaches this process and the new opportunities and limitations it may entail for social movement organizations with a more radical perspective on the right to the city. We explore the paradigmatic case of Brazil and the action of a particular organization, the Movimento dos Sem Teto da Bahia (MSTB, or Homeless Movement of Bahia) in the city of Salvador. We draw on the discussion of the politics of the right to the city and on an original combination of social movement theories and critical discourse analysis in order to analyse political‐institutional and discursive changes in urban reform in Brazil and Salvador. We then analyse how the MSTB moves within this new context, navigating its tensions and contradictions while advancing a radical project of transformation of urban reality within a reformist context. We also reflect on the relevance of Lefebvrian ideas for understanding and inspiring contemporary struggles for the right to the city.     

A theory of commerce

The theory of commerce advanced here captures prominent features of retail trade: large employment, congestion effects, anonymous posted prices, and quantity discounts. This theory is built around a directed search model where buyers’ preferences are private information. The analytical solution is easily inserted in a Neoclassical growth framework. In this framework, the parameters of retail trade are calibrated using commercial margins and employment. Welfare properties depend on the sellers’ ability to charge two-tier prices. With two-tier prices, the directed search equilibrium is efficient. Otherwise, it is not. This contrasts with the full information benchmark, where directed search is always efficient.     

eHR software,multinational corporations and emerging China: Exploring the role of information through a postcolonial lens

This paper seeks to offer an alternative account of Human Resources Information software (eHR) informed by a critical/postcolonial view on information systems. In so doing, it aims to explore the possibilities for managing people that information brings when Human Resources Management practices are transferred from “developed” to “developing” countries. The paper relies on several qualitative in-depth interviews with renowned Chinese Human Resources experts in Shanghai, and the examination of diverse eHR software-related documentation and functionalities. Critical discourse analysis was used to examine these sources. The findings show that eHR information systems bring new governance possibilities that support and expand the discipline of Human Resources Management. The use of eHR software in people management gives a new momentum and increased dominance to key Western-originated practices, such as HR-based performance management. Information brings new ordering options that facilitate the transferability, mobility and standardization of HR values, discourse and practices and, ultimately, the construction of a global “generified employee”. The paper offers a first critical analysis of eHR software, showing the need to understand the relevancy of the informating power of these systems for a postcolonial critique of ICT. It offers a view of the “micro-processes” that facilitate organizational transfer from the multinational corporation headquarters to the subsidiaries and across countries. In so doing, it challenges mainstream deterministic assumptions and apolitical approaches to this technology.     

Forecasting business and consumer surveys indicators–a time-series models competition

The objective of this article is to compare different time-series methods for the short-run forecasting of Business and Consumer Survey Indicators. We consider all available data taken from the Business and Consumer Survey Indicators for the Euro area between 1985 and 2002. The main results of the forecast competition are offered not only for raw data but we also consider the effects of seasonality and removing outliers on forecast accuracy. In most cases, the univariate autoregressions were not outperformed by the other methods. As for the effect of seasonal adjustment methods and the use of data from which outliers have been removed, we obtain that the use of raw data has little effect on forecast accuracy. The forecasting performance of qualitative indicators is important since enlarging the observed time series of these indicators with forecast intervals may help in interpreting and assessing the implications of the current situation and can be used as an input in quantitative forecast models.     

Trust in the image of God: Links between religiosity and reciprocity in Haiti

Are religious believers more prosocial than other people? In a trust game field experiment with 774 subjects in Haiti, we elicit willingness to pay to play in the presence of religious images, and argue that this can be interpreted as a measure of the strength of religiosity. More religious individuals trust others more and reciprocate more than others, with effect sizes between 14% and 21% of mean behaviour depending on the measure. They do not reciprocate more in the presence of religious images than without them, nor towards members of the same denomination as themselves. The results support the view that religious affiliation is correlated with intrinsic trustworthiness. We show that lab behaviour correlates with intuitive measures of religiosity outside the lab and with participation in borrowing and lending networks.     

Foreign influence and welfare

How do foreign interests influence policy? How are trade policies and the viability of trade agreements affected? What are the welfare implications of such foreign influence? In this paper we develop a model of foreign influence and apply it to the study of optimal tariffs. In a two-country voting model of electoral competition, we allow the incumbent party in each country to take costly actions that probabilistically affect the electoral outcome in the other country. We show that policies end up maximizing a weighted sum of domestic and foreign welfare. Using this formulation we show that foreign influence increases aggregate world welfare when there are no other means of alleviating the externalities that arise from cross-border effects of policies. In contrast, when countries can engage in international agreements, foreign influence can prove harmful as powerful countries may refuse to offer concessions. We also show that power imbalances are particularly detrimental to cooperation when they are positively correlated with economic size.     

Seasonal protection of F&V imports in the EU: impacts of the entry price system

The measures of border protection applied by the European Union (EU) to imports of fruits and vegetables (FV) are complex and usually not well represented in trade models, not only because of the range of instruments still constraining trade, but also because of product differentiation and seasonality in these products. This article assesses the impact of eliminating entry price (EP) constraints applied to a group of FV products. The proposed model is of a partial equilibrium nature and takes seasonality into account. We have applied the model to imports of tomatoes, cucumbers, clementines, and table grapes. Trade impacts of eliminating EP are significant for particular origins, during specific seasons, most notably for Moroccan tomatoes. The volumes and prices of products originating in the EU experience moderate reductions.     

Teacher Pay and Educational Outcomes: Evidence from the Rural Hardship Allowance in Zambia

This paper studies the effect of unconditional teacher salary increases on teacher and student outcomes. To study the issue, we evaluate the rural hardship allowance in Zambia, which corresponds to a salary increase of 20%. This allowance is allocated to schools on the basis of a distance criterion allowing us to use a regression discontinuity design. We use administrative data from 2004 to 2015 on school, teacher characteristics and test scores. The administrative data are complemented with a telephone survey of schools close to the eligibility threshold. We find that crossing the threshold increases the share of teachers obtaining the allowance by 40%. Because of some non‐compliance with the allocation rule, our estimates are fairly imprecise. Focusing on provinces with better compliance we find some, albeit weak, evidence that the allowance increases the stock of teachers. We, however, find no effects on teacher characteristics or on student test scores.     

The Curse and Blessing of Training the Unemployed in a Changing Economy: The Case of East Germany After Unification

Abstract. We analyse the effects of government-sponsored training for the unemployed conducted during East German transition. For the microeconometric analysis, we use a new, large and informative administrative database that allows us to use matching methods to address potential selection bias, to study different types of programmes and to observe labour market outcomes over eight years. We find strong evidence that, on average, the training programmes under investigation increase long-term employment prospects and earnings. However, as an important exception, the longer training programmes are not helpful for their male participants. At least part of the explanation for this negative result is that caseworkers severely misjudged the structure of the future demand for skills.