Empirical Evidence on Satisfaction with Privatization in Latin America: Welfare Effects and Beliefs

Since the 1980s, privatization of formerly state-owned firms has been extensively implemented by governments across Latin America. Despite the fact that most evaluations of the process fail to find significant adverse welfare effects, there has been a strong surge in public discontent with such policy in the region. This paper performs a systematic empirical analysis of the determinants of such discontent with privatizations in Latin America, using survey data from Latinobarometro covering 18 countries over the period 1995-2005, complemented by country level data on macroeconomic, political, and institutional aspects as well as data on privatization. Dissatisfaction appears to respond to absolute and relative welfare effects, as well as to individual beliefs and expectations.

Renormalization Group for Matrix Models with Branching Interactions

We develop a method to obtain the large N renormalization group flows for matrix models of 2 dimensional gravity plus branched polymers. This method gives precise results for the critical points and exponents for one matrix models. We show that it can be generalized to two matrices models and we recover the Ising critical points.Comment: 19 pages, 1 latex2e + 7 eps files, revised version (misprints corrected and a few points made more precise

Teoría del control óptimo: ¡Una guía para principiantes!

El objetivo de este artículo es doble: en una primera parte, se dan las principales intuiciones de la teoría de control óptimo. En la segunda parte se expondrán las grandes familias de problemas de control óptimo, así como las teorías correspondientes. Las aplicaciones a problemas económicos de esos teoremas serán ilustrados a lo largo de todo el documento.

Empirical Evidence on Satisfaction with Privatization in Latin America: Welfare Effects and Beliefs

Since the 1980s, privatization of formerly state-owned firms has been extensively implemented by governments across Latin America. Despite the fact that most evaluations of the process fail to find significant adverse welfare effects, there has been a strong surge in public discontent with such policy in the region. This paper performs a systematic empirical analysis of the determinants of such discontent with privatizations in Latin America, using survey data from Latinobarometro covering 18 countries over the period 1995-2005, complemented by country level data on macroeconomic, political, and institutional aspects as well as data on privatization. Dissatisfaction appears to respond to absolute and relative welfare effects, as well as to individual beliefs and expectations

Empirical Evidence on Satisfaction with Privatization in Latin America: Welfare Effects and Beliefs

Since the 1980s, privatization of formerly state-owned firms has been extensively implemented by governments across Latin America. Despite the fact that most evaluations of the process fail to find significant adverse welfare effects, there has been a strong surge in public discontent with such policy in the region. This paper performs a systematic empirical analysis of the determinants of such discontent with privatizations in Latin America, using survey data from Latinobarometro covering 18 countries over the period 1995-2005, complemented by country level data on macroeconomic, political, and institutional aspects as well as data on privatization. Dissatisfaction appears to respond to absolute and relative welfare effects, as well as to individual beliefs and expectations

A New Approach to the Study of Stellar Populations in Early-Type Galaxies: K-band Spectral Indices and an Application to the Fornax Cluster

New measurements of K-band spectral features are presented for eleven early-type galaxies in the nearby Fornax galaxy cluster. Based on these measurements, the following conclusions have been reached: (1) in galaxies with no signatures of a young stellar component, the K-band Na I index is highly correlated with both the optical metallicity indicator [MgFe]' and central velocity dispersion; (2) in the same galaxies, the K-band Fe features saturate in galaxies with sigma > 150 km/s while Na I (and [MgFe]') continues to increase; (3) [Si/Fe] (and possibly [Na/Fe]) is larger in all observed Fornax galaxies than in Galactic open clusters with near-solar metallicity; (4) in various near-IR diagnostic diagrams, galaxies with signatures of a young stellar component (strong Hbeta, weak [MgFe]') are clearly separated from galaxies with purely old stellar populations; furthermore, this separation is consistent with the presence of an increased number of M-giant stars (most likely to be thermally pulsating AGB stars); (5) the near-IR diagrams discussed here seem as efficient for detecting putatively young stellar components in early-type galaxies as the more commonly used age/metallicity diagnostic plots using optical indices (e.g Hbeta vs. [MgFe]').Comment: 47 pages, 16 figures, ApJ accepte

Solving Virasoro Constraints in Matrix Models

This is a brief review of recent progress in constructing solutions to the matrix model Virasoro equations. These equations are parameterized by a degree n polynomial W_n(x), and the general solution is labeled by an arbitrary function of n-1 coefficients of the polynomial. We also discuss in this general framework a special class of (multi-cut) solutions recently studied in the context of \cal N=1 supersymmetric gauge theories.Comment: 9 pages, LaTeX, contribution to the 37th International Symposium Ahrenshoop on the Theory of Elementary Particle

Privacy in data service composition

In modern information systems different information features, about the same individual, are often collected and managed by autonomous data collection services that may have different privacy policies. Answering many end-users’ legitimate queries requires the integration of data from multiple such services. However, data integration is often hindered by the lack of a trusted entity, often called a mediator, with which the services can share their data and delegate the enforcement of their privacy policies. In this paper, we propose a flexible privacy-preserving data integration approach for answering data integration queries without the need for a trusted mediator. In our approach, services are allowed to enforce their privacy policies locally. The mediator is considered to be untrusted, and only has access to encrypted information to allow it to link data subjects across the different services. Services, by virtue of a new privacy requirement, dubbed k-Protection, limiting privacy leaks, cannot infer information about the data held by each other. End-users, in turn, have access to privacy-sanitized data only. We evaluated our approach using an example and a real dataset from the healthcare application domain. The results are promising from both the privacy preservation and the performance perspectives

Advocacy for identifying certain animal diseases as “neglected”

According to the World Health Organization (WHO), neglected tropical diseases (NTDs) affect almost 1,000,000,000 people in 149 countries (http://www.who.int/neglected_diseases/diseases/en/). Most are small family farmers living in the least-developed countries where health systems are often inadequate, and climate conditions are favourable to infectious and parasitic diseases. These diseases hinder socioeconomic development, maintain poverty, and impede the achievement of UN sustainable development goals (SDGs) [1]. Economic analyses have shown that their control, elimination, or eradication would lead to net economic benefits [2]. Rapid progress can be achieved when organised health systems, whether public, private, or mixed, are in place to provide diagnostic methods and facilities, treatments, and vaccines. Of the 18 diseases on WHO's list of NTDs, only 5 are zoonoses: Taenia solium cysticercosis, echinococcosis, leishmaniasis, rabies, and human African trypanosomiasis (HAT). Some authors consider this list incomplete and believe that at least 3 other major zoonoses—anthrax, bovine tuberculosis, and brucellosis—should be included [3]. Moreover, while some public–private partnerships—e.g., the Global Alliance for Livestock Veterinary Medicines, GALVmed (https://www.galvmed.org/)—now target major livestock diseases impacting smallholders by connecting academia, public research institutes, and the pharmaceutical sector, no strictly animal disease (i.e., nonzoonotic) has been labelled “neglected”. Nevertheless, animal diseases directly impact people's livelihoods. Furthermore, due to the multiple functions fulfilled by livestock in rural societies—as sources of food, income, and social status—animal diseases ultimately also impact human health. (Résumé d'auteur