More than Words: Leaders' Speech and Risky Behavior During a Pandemic

How do political leader's words and actions affect people's behavior? We address this question in the context of Brazil by combining electoral data and geo-localized mobile phone data for more than 60 million devices throughout the entire country. We find that after Brazil's president publicly and emphatically dismisses the risks associated with the COVID-19 Pandemic and advises against isolation, social distancing measures of citizens in pro-government localities reduce relative to those places in which his support is weaker, while pre-event effects are insignificant. The impact is large and robust to different empirical model specifications. We also find suggestive evidence that this impact is driven by localities with relatively higher levels of media penetration

Slums and Pandemics

This paper studies the role of slums in shaping the economic and health dynamics of pandemics. Using data from millions of mobile phones in Brazil, an event-study analysis shows that residents of overcrowded slums engaged in less social distancing after

Portuguese average cost of capital

The oldest Portuguese share index still being calculated is the BVL/PSI-General, one which started the daily series on 5/Jan/1988 with a base value of 1000 points. Everyday a single value is computed based on the closing prices of all the shares included in the sample. Also, all corporate events affecting the price of any share beyond market sentiment are taken into account through proper adjustments, either in the numerator or the denominator of the formula. However, for dates before January 1988, there is nothing comparable to this index since the two different series known either never disclosed the methodology adopted to calculate the index or followed solutions not compatible with the above index. The present paper explains the solutions adopted to replicate as closely as possible the methodology of the BVL-General index to the main market of the Lisbon Exchange for the period 1978 – 1987. This is the first estimate of the historical Equity Risk Premium in Portugal above short-term risk-free rate from the re-opening of the market following the Carnation Revolution (and the accompanying nationalizations), to the present. In showing a value of the same order of magnitude found in other countries, the paper invites further studies on the effects of political decisions such as privatizations and joining the European Union

Winning the oil lottery: the impact of natural resource extraction on growth

This paper provides evidence of the causal impact of oil discoveries on local development. Novel data covering the universe of oil wells drilled in Brazil allow us to exploit a quasi-experiment: Municipalities where oil was discovered consti- tute the treatment group, while municipalities with drilling but no discovery are the control group. The results show that oil discoveries significantly increase local production and have positive spillovers. Workers relocate from informal, low pro- ductivity agriculture to higher value-added activities in formal services, increasing urbanization. The results are consistent with greater local demand for non-tradable services driven by highly paid oil workers

Taxa de decomposição de adubos verdes e disponibilidade de N influenciando o feijoeiro comum em sistema agroecológico de produção.

Os objetivos deste trabalho foram avaliar a produção de fitomassa, a quantidade de N fornecida por ela e a taxa de decomposição de adubos verdes e seus efeitos na cultura do feijoeiro comum em sistema de produção agroecológica.bitstream/CNPAF-2010/29763/1/comt-175.pd

Simulação do crescimento e desenvolvimento do trigo irrigado utilizando o modelo CERES-Wheat na região de Campinas - SP.

Este trabalho tem como objetivos apresentar de forma sucinta o funcionamento do modelo CERES-Wheat inserido na plataforma DSSAT 3.5, assim como apresentar os resultados obtidos das simulações realizadas com o modelo e os observados em experimento de campo, em especial a sua capacidade de detectar os efeitos da aplicação de N sob a fenologia e produtividade de grãos do trigo sob irrigação.bitstream/CNPTIA/9961/1/circtec2.pdfAcesso em: 28 maio 2008

Effect of green manure species and their sowing dates on common bean crop.

Nitrogen is the most required nutrient by common bean (Phaseolus vulgaris L.). Although common bean can obtain this nutrient from atmosphere by the biological nitrogen fixation (BNF) process, the fixed amounts are not enough to supply all plant necessities. Under agroecological production systems, part of the required N could be supplied by green manures as an alternative to fertilizers

Genótipos de feijoeiro comum em sistema de produção orgânico.

O objetivo foi identificar linhagens e cultivares de feijoeiro comum desenvolvidas pelo programa de melhoramento genético da Embrapa Arroz Feijão adaptadas ao cultivo em sistema orgânico, em diferentes épocas de semeadura.bitstream/CNPAF/26601/1/comt_141.pd