Ichthyological survey of the Camba Cué lagoon, Apipé Grande Island, Corrientes, Argentina. The Apipé Grande island is a Provincial Reserve located in the Paraná river at 1400 km, from its origin at the Buenos Aires harbor, and two km downstream of the Yacyretá Dam. The outstanding feature of the island is that 70 % of its area comprises wetland environments. At the center of the island there are Hermosa and Cambá Cué «lagunas» with 300 and 1000 hectares respectively. The present paper reports the results of the first ichthyological survey to the referred water bodies. As a result of the sampling fieldwork 55 fish species were identified. The presence of species belonging to lotic and lenitic environments is interpreted as evidence for the close hydrological relationship of these water bodies and the Paraná river system. Key words: Cambá Cué lagoon, protected areas, Apipé Grande Island, Paraná River, Neotropical ichthyology, biogeography, la Plata Basin, Apipé rapids.Resumen: La isla Apipé Grande se encuentra a la altura del kilómetro 1400 del río Paraná, dos kilómetros aguas abajo de la represa Yacyretá y actualmente constituye la Reserva Provincial Isla Apipé Grande. Esta isla se destaca por poseer cerca del 70 % de la superficie compuesta por zonas bajas e inundables integradas por madrejones, esteros y lagunas. En la zona central de la isla se encuentran las lagunas Hermosa y Cambá Cué que cubren un área aproximada de 300 y 1000 hectáreas respectivamente. En el presente trabajo se informan los resultados del primer relevamiento ictiológico de los referidos cuerpos de agua. La toma de muestras realizada en la laguna Cambá Cué permitió identificar 55 especies de peces. La presencia de especies características de ambientes tanto lóticos como leníticos es interpretada como evidencia de la estrecha relación hidrológica entre estos cuerpos de agua y el sistema del río Paraná.Palabras clave: laguna Cambá Cué, áreas protegidas, isla Apipé Grande, río Paraná, ictiología neotropical, biogeografìa, cuenca del Plata, Saltos de Apipé. ____________

Following World War I, rent control became a standard policy response to the housing shortage and the resulting rent increases. Typically, economists blame it for creating inefficiencies in the housing market and beyond. We investigate whether rental market regulations (including rent control, protection of tenants from eviction, and housing rationing) had any effects in a middle-income Latin American economy, such as Argentina. To answer this question, we take advantage of a wide range of housing market indicators and restrictive rental regulation indices covering almost one century. Using a standard OLS model and MARS, a nonlinear estimation technique, we find that rental market regulations have exerted a statistically significant negative impact on the growth rates of the real housing rents. However, they were only effective for short periods following both World Wars, when regulations were novel and particularly strong.

ResumenEste trabajo explora los determinantes de los flujos de comercio de 28 sectores manufactureros entre el MERCOSUR y la UE. Para tal propósito, se estima una ecuación gravitacional para 16 países durante el período 1991-2004. De acuerdo a lo esperado, el producto conjunto de los países, la distancia entre ellos, la población, como así también otras variables de control, parecen explicar los flujos comerciales bilaterales de manufacturas. Palabras clave: Integración económica, MERCOSUR, UE, Ecuación gravitacional. AbstractThis paper explores the determinants of MERCOSUR-EU bilateral trade flows for 28 manufacturing sectors. In doing so, a gravity equation is estimated for 16 countries for the period 1991-2004. As expected, the combined output of trade partners, the distance between them, their population and a number of other control variables seem to explain the bilateral trade flows of manufactures.

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