Rural structural change,poverty and income distribution: evidence from Peru

Some rural regions of Peru showed remarkable rates of poverty reduction and inequality reduction between 2004 and 2012, while others lagged behind. Using microsimulation-based decompositions, we analyse the driving forces behind these trends, finding that rural poverty and inequality reductions are mainly attributable to increasing labour incomes in Peru’s agricultural sector and, to a smaller extent, increasing public transfers. In earlier years, higher returns to experience drive these results, while in later years, increasing staple-crop yields and prices are of key importance. Further, remuneration of working hours increases in reaction to labour-supply shortages in rural areas. The accompanying rising incomes and non-agricultural job creation is less pro-poor than would be ideal, as they benefit more highly skilled workers. Further, shrinking farm sizes hampers poverty reduction and income-inequality reduction. Policies should target the participation of the poor in high-value (non-)agricultural activities, especially if positive trends in commodity prices are only transitory.     

Effects of resistance training on liver structure and function of aged rats

The aging process may cause negative physiological changes. However, exercises as resistance training (RT) have been considered an important intervention to attenuate these changes. Additionally, liver plays an important role in blood glucose homeostasis in exercise.

Aim: This study aimed to analyze the effects of RT on the liver components of aged animals.

Methods: Male Wistar rats were divided into two groups: 24 months’ group (CONTROL); and group submitted to a progressive RT protocol for 16 weeks (EXERCISE). Both groups were sacrificed at 24 months.

Results: We observed a decrease in blood flow due to the practice of resistance exercises. Besides, our results showed that hepatic tissue plays an important role in glycemic homeostasis during RT. In addition, RT increased mitogen capacity of hepatocytes.

Conclusions: Our study showed many implications for the knowledge about the effects of strength training on old animals’ liver.     

Twitter and video activism as tools for counter-surveillance: the case of social protests in Spain

From a communication perspective, social movements of international significance such as the Arab Spring, Toronto G20, Spanish 15M or Occupy Wall Street have been characterized by the use of mobile communication and social media as tools for video activism and counter-surveillance against the abuse of power committed by the state forces. A representative case of this reality, which reached a high coverage and support in social media environment, can be found in the riots that took place in the Gamonal neighbourhood (Burgos, Spain) in January 2014. In this regard, this article focuses on the denunciation of police violence through video activism by Twitter users during the demonstrations across the country, applying a quantitative–qualitative mixed methodology. First, by means of a content analysis, a sample of 784 tweets linked to videos is analysed in order to identify the main topics and functions of the shared content. Second, a textual analysis of those linked videos of a violent nature recorded by witnesses in order to document police interventions is carried out. The prominent use of Twitter for distributing videos to denounce police violence stands out among the main findings, underlining the audiovisual exposure and ‘secondary visibility’ of the police officers. The results obtained also reinforce the idea of citizen empowerment through the development of an alternative form of journalism, as a practice to criticize the mainstream media coverage of the protests. Additionally, this article sheds light on the open debate about the relevance of social media to encourage citizen involvement in a face-to-face interaction.     

Knowledge co-production with social movement networks. Redefining grassroots politics,rethinking research

Drawing on ethnographic research with social movement networks in Spain, this article explores the challenges and possibilities of research collaboration. My project focused on the emerging logics and practices of collective action, the ongoing re-definition of grassroots politics. The engagement with social movements as reflexive communities – not simply objects to be studied, but subjects actively producing their own analysis and explanations, their own ‘knowledge-practices’ – deeply transformed the in-fieldwork encounter. Through a series of co-analysis workshops, designed and implemented together with the research subjects/collaborators, this research became an open-ended dialogue of reflexivities. The shift from working on social movements to working and thinking together with social movement activists as co-researchers produced new scholarly knowledge, advancing our understanding of contemporary collective action, while simultaneously making research useful for the activists. Moreover, locating epistemic and methodological questions at the centre of the project, I addressed salient debates in social science, exploring collaborative frameworks in order to problematize traditional forms of knowledge production and validation.     

On the decomposition by sources of the Zenga 1984 point and synthetic inequality indexes

In this work we provide a decomposition by sources of the inequality index \(\zeta \) defined by Zenga (Giornale degli Economisti e Annali di economia 43(5–6):301–326, 1984). The source contributions are obtained with the method proposed in Zenga et al. (Stat Appl X(1):3–31, 2012) and Zenga (Stat Appl XI(2):133–161, 2013), that allows to compare different inequality measures. This method is based on the decomposition of inequality curves. To apply this decomposition to the index \(\zeta \) and its inequality curve, we adapt the method to the “cograduation” table. Moreover, we consider the case of linear transformation of sources and analyse the corresponding results.     

Bargaining Power and Wage Determination: The Role of Outside Options

ABSTRACT: The paper analyses the wage bargaining process between an entrepreneur and his workforce when delays in agreement intrinsically reduce the amount of returns to be shared It is shown that the outside options of the workforce and the entrepreneur can be a systematic determinant of their bargaining power in contrast to what the Rubinstein (1982) model predicts The basic model is extended to analyse: (i) bargaining under multiple unionism; (ii) the- possible relationship between bargaining and efficiency wages; and (iii) under investment in workforce training.     

The Marital Status of Recent Mexican Immigrants in the United States in 1980 and 19901

Using Public Use Microdata Samples, we analyze the temporal marriage patterns of recent Mexican immigrants in the United States, and relate these patterns to socioeconomic and political events, such as U.S. immigration reform, increasing returns to skill, and rising incentives for unattached Mexicans to migrate during the 1980s. Our findings indicate that recent Mexican immigrants (particularly men) were less likely to be married within five years of migrating in 1990 than their counterparts had been in 1980. An empirical extension further suggests that the relative endogamy odds among Mexican immigrants who migrated to the United States by 1980 increased during the next decade. Such demographic changes may affect policies involving issues such as education, welfare and retirement.     

REGULATION AND INVESTMENT

We use newly assembled data on regulation in several sectors of many OECD countries to provide evidence that regulatory reform of product markets is associated with an increase in investment. A component of reform that plays a very important role is entry liberalization, but privatization also has a substantial effect on investment. Sensitivity analysis suggests that our results are robust. (JEL: E22, L5)