O Pass-Through da taxa de câmbio para a inflação no Brasil : análise e estimação via um modelo DSGE

O pass-through do câmbio para a inflação, definido como a variação da inflação doméstica em resposta a uma variação de 1% na taxa de câmbio, é central para a política monetária de países emergentes, que sofrem com alta volatilidade cambial. O presente trabalho tem como objetivo principal estimar o coeficiente de pass-thorugh para a economia brasileira entre 2000 e 2022, visando analisar como este se comportou no período de pandemia de Covid-19. Existe uma vasta literatura que aborda a possibilidade de nãolineariedade do coeficiente de pass-through. Este variaria de acordo com diversos fatores que envolvem o cenário macroeconômico, como inflação e credibilidade do regime de metas. Para estimar o coeficiente de pass-through cambial, foi utilizado um modelo DSGE NovoKeynesiano, com mudança markoviana de regimes, o que permite a não-lineariedade do pass-through. Encontrou-se que a economia brasileira possui dois regimes bem delimitados de pass-through. O primeiro regime, que vigora de 2005 até 2019, possui um pass-through estatisticamente nulo (para uma variação cambial de 1%, há uma variação de 0,0087% na inflação no longo prazo). O segundo regime possui um pass-through consideravelmente maior, chegando a um aumento de 0,1064% na inflação no longo prazo dada uma depreciação cambial de 1%. Esse regime esteve presente entre 2000 e 2004 e, de novo, a partir do segundo semestre de 2020.The exchange-rate pass-through, defined as the variation in domestic inflation in response to a 1% variation in the exchange rate, is central to monetary policy in emerging markets, where there is a high exchange rate volatility. The main goal of this work is to estimate the exchange-rate pass-through coefficient for the Brazilian economy between 2000 and 2022 to analyze how it behaved during the Covid-19 pandemic. There is vast literature concerning the possibility of nonlinearity in the pass-through coefficient. Many studies show that it varies with macroeconomic variables, such as inflation and the credibility of the inflation targetting regime. To calculate the exchange-rate pass-through coefficient, I will estimate a New-Keynesian DSGE model with Markov switching regime, which allows for a non-linear pass-through. I found that the Brazilian economy has two well-defined exchange rate pass-through regimes. The first regime occurs from 2005 to 2019. It has a statistically insignificant pass-through (for a 1% change in the exchange rate, there is a variation of 0,0087% in the inflation in the long run). The second regime has a larger and statistically significant pass-through, getting to a rise of 0,1064% in inflation in the long run for an exchange rate depreciation of 1%. This regime was present from 2000 to 2004 and, again, starting in the second semester of 2020

Neotropical freshwater fisheries : A dataset of occurrence and abundance of freshwater fishes in the Neotropics

The Neotropical region hosts 4225 freshwater fish species, ranking first among the world's most diverse regions for freshwater fishes. Our NEOTROPICAL FRESHWATER FISHES data set is the first to produce a large-scale Neotropical freshwater fish inventory, covering the entire Neotropical region from Mexico and the Caribbean in the north to the southern limits in Argentina, Paraguay, Chile, and Uruguay. We compiled 185,787 distribution records, with unique georeferenced coordinates, for the 4225 species, represented by occurrence and abundance data. The number of species for the most numerous orders are as follows: Characiformes (1289), Siluriformes (1384), Cichliformes (354), Cyprinodontiformes (245), and Gymnotiformes (135). The most recorded species was the characid Astyanax fasciatus (4696 records). We registered 116,802 distribution records for native species, compared to 1802 distribution records for nonnative species. The main aim of the NEOTROPICAL FRESHWATER FISHES data set was to make these occurrence and abundance data accessible for international researchers to develop ecological and macroecological studies, from local to regional scales, with focal fish species, families, or orders. We anticipate that the NEOTROPICAL FRESHWATER FISHES data set will be valuable for studies on a wide range of ecological processes, such as trophic cascades, fishery pressure, the effects of habitat loss and fragmentation, and the impacts of species invasion and climate change. There are no copyright restrictions on the data, and please cite this data paper when using the data in publications

Molecular imprinting science and technology : A survey of the literature for the years 2004 - 2011

Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed. Copyright © 2014 John Wiley & Sons, Ltd