Coauthorship and Thematic Networks in AAEP Annual Meetings

We analyze the coauthorship production of the AAEP Annual Meeting since 1964. We use social network analysis for creating coauthorship networks and given that any paper must be tagged with two JEL codes, we use this information for also structuring a thematic network. Then we calculate network metrics and find main actors and clusters for coauthors and topics. We distinguish a gender gap in the sample. Thematic networks show a cluster of codes and the analysis of the cluster shows the preeminence of the tags related to trade, econometric, distribution/poverty and health and education topics.Comment: 30 pages, 12 Figures, 16 Table

Tests for Unbalanced Error Component Models Under Local Misspecication

This paper derives unbalanced versions of the tests statistics for ¯rst order serial correlation and random individual e®ects summarized in Sosa Escudero and Bera (2001), and updates their xttest1 routine. The derived tests statistics should be useful for applied researchers faced with the increasing availability of panel information where not every individual or country is observed for the full time span. Also, as it was the case of the previously available tests, the test statistics proposed here are based on the OLS residuals, and hence are computationally very simple.error components model, unbalanced panel data, testing, misspecification.

Tracing out the Effects of Demographic Changes on the Income Distribution. The Case of Greater Buenos Aires 1980-2000

During the last two decades fertility decisions have varied significantly and not uniformly along the income distribution. In this paper we study the effects of these demographic changes on two dimensions of the income distribution -poverty and inequality- by applying microeconometric decompositions techniques. In particular, we simulate the equivalized household income distribution that would emerge if individuals in time t took fertility decisions as in time t’. The results suggest that these demographic factors can account for a of the actual increase in poverty and inequality between 1980 y 1992.demography, fertility, income distribution, poverty, inequality, Argentina, Greater Buenos Aires, decompositions

Payroll Taxes, Wages and Employment: Identification through Policy Changes

This paper investigates the effect of changes in payroll taxes on wages and employment in Argentina. The analysis, based on administrative data, focuses on the impact of a series of major changes in payroll taxes which varied across geographical areas. This setup offers two main advantages over previous studies. First, using longitudinal data, the variation in tax rates across space and time provides a plausible source of identification of their effects on employment and wages. Second, the use of legal tax rates for each area at each point in time provides a remedy for the measurement error bias raised by the use of empirical rates constructed from observed tax and wage bills. Once this bias is accounted for, the results indicate that changes in payroll tax rates are only partially shifted onto wages, and they point to the absence of any significant effect on employment.Argentina, payroll taxes, employment, wages

An Estimation of CPI Biases in Argentina 1985-2005, and its Implications on Real Income Growth and Income Distribution

We use the shifts in Engel curves estimated from household surveys to estimate CPI biases in Argentina between 1985 and 2005. We find that real earning levels increased during this period between 4.3 and 5.7% faster per year than previously estimated. More surprisingly, relative to conventional wisdom, that income distribution has improved throughout this period.

An update on pharmacotherapy for type 2 diabetes

Glucose lowering drugs have been available for clinical use for over the past 60 years or so with the last 2 decades seeing a significant number of new agents being developed making treatment increasingly complex and also somewhat controversial. This stems from the fact that while it is now known that patients with diabetes have an increased risk for cardiovascular disease and mortality there are mounting concerns with regards to the cardiovascular effects of certain antihyperglycemic agents leading to uncertainties when it comes to drug prescription. This has left many clinicians perplexed with respect to optimal strategies for management for management of such patients leading to many regulatory bodies to issue recommendations for antihyperglycimic therapy in adults with type 2 diabetes. These all uniformly advocate an individualised approach, keeping in mind each patients’ unique health profile (such as age and weight) and their cardiovascular risk factors vis-a-vie the specific attributes, side effects and adverse effects of each antihyperglycemic agent. This article will focus on the ten major categories of diabetic therapies looking specifically at their mode of action, safety profile as well as key trial data and where possible the long-term outcome studies for each class.peer-reviewe

Impact of Technical Barriers to Trade on Argentine Exports and Labor Markets

While tariff and quota barriers in agricultural, food and manufactured products have been declining due to the proliferation of multilateral trade agreements, there is increasing debate regarding the impact of product and process standards and technical regulations, since they may have become a subtler form of protection. One of the possible effects of increasing standards in developing countries is that it may affect the size of the exporting sector, with adverse effects on labor markets. We test such effect for the case of Argentina using firm level data for the manufacturing sector. We find evidence of a reduction in export shares due to an increase in standard stringency. Moreover, there is an increase in the skill ratio for exporting firms. The overall effect of standard stringency on average wages of exporting firms is negative, supporting the idea that lower net producer prices, due to a higher cost of standard compliance, are passed on to workers.

Simultaneous maximum-likelihood calibration of odometry and sensor parameters

For a differential-drive mobile robot equipped with an on-board range sensor, there are six parameters to calibrate: three for the odometry (radii and distance between the wheels), and three for the pose of the sensor with respect to the robot frame. This paper describes a method for calibrating all six parameters at the same time, without the need for external sensors or devices. Moreover, it is not necessary to drive the robot along particular trajectories. The available data are the measures of the angular velocities of the wheels and the range sensor readings. The maximum-likelihood calibration solution is found in a closed form