Getting realabout inequality : evidence from Brazil, Colombia, Mexico, and Peru

Consumption baskets vary across households and inflation rates vary across goods. As a result, standard consumer price index (CPI) inflation may provide a misleading measure of the inflation actually faced by poor households, more so the more unequal the distribution of aggregate consumption across households. Likewise, changes in observed nominal consumption inequality may be very different from those in true inequality, that is, that measured using household-specific CPIs. The authors explore empirically these issues using household data covering nine episodes from four Latin American countries (Brazil, Colombia, Mexico, and Peru). They find that in these countries standard CPI inflation typically reflects the inflation rate faced by a rich consumer located in the 80 to 90 percentile of the distribution of consumption expenditure. In most episodes the authors also find that inflation was anti-rich-that is, the inflation faced by the richest consumers was higher than the inflation faced by the poorest consumers. As a result of this bias, the observed increases in nominal inequality generally exceed the actual changes in real inequality. These results are robust to correcting for quality change bias in the CPI, to the use of alternative price indices, and to the use of alternative inequality measures.Markets and Market Access,Economic Theory&Research,Access to Markets,Inequality,Consumption

The determinants of rising informality in Brazil : Evidence from gross worker flows

This paper studies gross worker flows to explain the rising informality in Brazilian metropolitan labor markets from 1983 to 2002. This period covers two economic cycles, several stabilization plans, a far-reaching trade liberalization, and changes in labor legislation through the Constitutional reform of 1988. First, focusing on cyclical patterns, the authors confirm that for Brazil, the patterns of worker transitions between formality and informality correspond primarily to the job-to-job dynamics observed in the United States, and not to the traditional idea of the informal queuing for jobs in a segmented market. However, the analysis also confirms distinct cyclical patterns of job finding and separation rates that lead to the informal sector absorbing more labor during downturns. Second, focusing on secular movements in gross flows and the volatility of flows, the paper finds the rise in informality to be driven primarily by a reduction in job finding rates in the formal sector. A small fraction of this is driven by trade liberalization, and the remainder seems driven by rising labor costs and reduced flexibility arising from Constitutional reform.Labor Markets,Labor Policies,Population Policies,,Health Monitoring&Evaluation

Centralized and distributed cognitive task processing in the human connectome

A key question in modern neuroscience is how cognitive changes in a human brain can be quantified and captured by functional connectomes (FC) . A systematic approach to measure pairwise functional distance at different brain states is lacking. This would provide a straight-forward way to quantify differences in cognitive processing across tasks; also, it would help in relating these differences in task-based FCs to the underlying structural network. Here we propose a framework, based on the concept of Jensen-Shannon divergence, to map the task-rest connectivity distance between tasks and resting-state FC. We show how this information theoretical measure allows for quantifying connectivity changes in distributed and centralized processing in functional networks. We study resting-state and seven tasks from the Human Connectome Project dataset to obtain the most distant links across tasks. We investigate how these changes are associated to different functional brain networks, and use the proposed measure to infer changes in the information processing regimes. Furthermore, we show how the FC distance from resting state is shaped by structural connectivity, and to what extent this relationship depends on the task. This framework provides a well grounded mathematical quantification of connectivity changes associated to cognitive processing in large-scale brain networks.Comment: 22 pages main, 6 pages supplementary, 6 figures, 5 supplementary figures, 1 table, 1 supplementary table. arXiv admin note: text overlap with arXiv:1710.0219

A population-based microbial oscillator

Genetic oscillators are a major theme of interest in the emerging field of synthetic biology. Until recently, most work has been carried out using intra-cellular oscillators, but this approach restricts the broader applicability of such systems. Motivated by a desire to develop large-scale, spatially-distributed cell-based computational systems, we present an initial design for a population-level oscillator which uses three different bacterial strains. Our system is based on the client-server model familiar to computer science, and uses quorum sensing for communication between nodes. We present the results of extensive in silico simulation tests, which confirm that our design is both feasible and robust.Comment: Submitte

Solving Travelling Salesman Problem in a Simulation of Genetic Algorithms with DNA

In this paper it is explained how to solve a fully connected N-City travelling salesman problem (TSP) using a genetic algorithm. A crossover operator to use in the simulation of a genetic algorithm (GA) with DNA is presented. The aim of the paper is to follow the path of creating a new computational model based on DNA molecules and genetic operations. This paper solves the problem of exponentially size algorithms in DNA computing by using biological methods and techniques. After individual encoding and fitness evaluation, a protocol of the next step in a GA, crossover, is needed. This paper also shows how to make the GA faster via different populations of possible solutions

Ressenyes

Index de les obres ressenyades: Vidal DÍAZ DE RADA IGUZQUIZA ; Adoración NÚÑEZ VILLUENDAS, Estudio de las incidencias en la investigación con encuesta. El caso de los barómetros del CI

Peranan Komunikasi Organisasi Dalam Peningkatan Kualitas Pelayanan Di Kecamatan Mapanget Kota Manado

Pentingnya peranan komunikasi organisasi adalah perlu menciptakan system pelayanan yang baik. Dapat disadari bahwa dalam suatu organisasi yang berskala besar dengan jumlah personilnya yang banyak tentu harus membutuhkan proses pelayanan. Namun dalam Kenyataannya proses pelayanan yang diemban aparatur pemerintah sampai saat ini belumlah maksimal, disebabkan karena cara pelayanan yang dilakukan oleh aparatur pemerintah berbelit-belit, lama, tidak terbuka (transparan), tidak memuaskan. Kondisi ini seringkali dapat kita jumpai pada proses penyelenggaraan pemerintahan khususnya diwilayah Kecamatan.Untuk menciptakan keharmonisan dan kelancaran tugas maupun pekerjaan dari suatu organisasi, seperti dalam suatu kantor atau pelaksanaan tugas-tugas yang dijalankan oleh aparatur pemerintah. Komunikasi organisasi adalah merupakan suatu bentuk atau aplikasi pemberian pesan komunikasi yang bersifat vertikal yang dapat difahami antara lain melalui hubungan antara atasan dan bawahan; yang berupa perintah, instruksi, nasehat dari pimpinan kepada bawahannya serta berkaitan dengan tugas pekerjaan kantor maupun komunikasi organisasi yang bersifat horizontal yakni proses komunikasi organisasi yang menciptakan hubungan antara pegawai dengan pegawai lainnya

A new compilation of stomach content data for commercially-important pelagic fish species in the Northeast Atlantic

There is increasing demand for information on predator–prey interactions in the ocean as a result of legislative commitments aimed at achieving sustainable exploitation. However, comprehensive data sets are lacking for many fish species and this has hampered development of multispecies fisheries models and the formulation of effective food-web indicators. This work describes a new compilation of stomach content data for five pelagic fish species (herring, blue whiting, mackerel, albacore and bluefin tuna) sampled across the northeast Atlantic and submitted to the PANGAEA open-access data portal (www.pangaea.de). We provide detailed descriptions of sample origin and of the corresponding database structures. We describe the main results in terms of diet composition and predator–prey relationships. The feeding preferences of small pelagic fish (herring, blue whiting, mackerel) were sampled over a very broad geographic area within the North Atlantic basin, from Greenland in the west, to the Lofoten Islands in the east and from the Bay of Biscay northwards to the Arctic. This analysis revealed significant differences in the prey items selected in different parts of the region at different times of year. Tunas (albacore and bluefin) were sampled in the Bay of Biscay and Celtic Sea. Dominant prey items for these species varied by location, year and season. This data compilation exercise represents one of the largest and most wide-ranging ever attempted for pelagic fish in the North Atlantic. The earliest data included in the database were collected in 1864, whereas the most recent were collected in 2012. Data sets are available at doi:10.1594/PANGAEA.820041 and doi:10.1594/PANGAEA.826992

Fiscal redistribution and income inequality in Latin America

Income inequality in Latin America ranks among the highest in the world. It can be traced back to the unequal distribution of assets (especially land and education) in the region. But the extent to which asset inequality translates into income inequality depends on the redistributive capacity of the state. This paper documents the performance of Latin American fiscal systems from the perspective of income redistribution using newly-available information on the incidence of taxes and transfers across the region. The findings indicate that: (i) the differences in income inequality before taxes and transfers between Latin America and Western Europe are much more modest than those after taxes and transfers; (ii) the key reason is that, in contrast with industrial countries, in most Latin American countries the fiscal system is of little help in reducing income inequality; and (iii) in countries where fiscal redistribution is significant, it is achieved mostly through transfers rather than taxes. These facts stress the need for fiscal reforms across the region to further the goal of social equity. However, different countries need to place different relative emphasis on raising tax collection, restructuring the tax system, and improving the targeting of expenditures.Taxation&Subsidies,Emerging Markets,Debt Markets,Economic Theory&Research,Poverty Impact Evaluation