Results 91 to 100 of about 9,871 (159)

Use of concomitant proton pump inhibitors, statins or metformin in patients treated with pembrolizumab for metastatic urothelial carcinoma: data from the ARON-2 retrospective study. [PDF]

open access: yesCancer Immunol Immunother, 2023
Fiala O   +91 more
europepmc   +1 more source

The Dynamic Relationship between Stock Prices and Exchange Rates: evidence for Brazil [PDF]

open access: yes
This paper studies the dynamic relationship between stock prices and exchange rates in the Brazilian economy. We use recently developed unit root and cointegration tests, which allow endogenous breaks, to test for a long run relationship between these ...
Benjamin M. Tabak
core  

The Effect of Bid-Ask Prices on Brazilian Options Implied Volatility: A Case Study of Telemar Call Options [PDF]

open access: yes
Although not explicitly reported, option traders on the Bovespa exchange pay an implicit bid-ask spread on each trade. Reported transaction prices that comprise the databases previously used to study the Brazilian options markets do not reflect actual ...
Claudio Henrique da Silveira Barbedo   +1 more
core  

Exchange Rate Dynamics and the Relationship between the Random Walk Hypothesis and Official Interventions [PDF]

open access: yes
This paper examines the empirical evidence that official interventions are associated with periods of high predictability in exchange rate markets. We employ a block bootstrap methodology to build critical values for the Variance Ratio statistics and ...
Benjamin Miranda Tabak   +1 more
core  

Myopic Loss Aversion and House-Money Effect Overseas: an experimental approach [PDF]

open access: yes
Recent literature has found two behavioral effects - house-money and myopic loss aversion (MLA) - in several experimental designs. We show that although we can find a house-money effect using survey methods this evidence disappears when we study ...
Benjamin M. Tabak   +2 more
core  

Clinical impact of healthcare-associated infections in Brazilian ICUs: a multicenter prospective cohort. [PDF]

open access: yesCrit Care
Tomazini BM   +31 more
europepmc   +1 more source

Term Structure Movements Implicit in Option Prices [PDF]

open access: yes
This paper analyzes how including options in the estimation of a dynamic term structure model impacts the way it captures term structure movements. Two versions of a multi-factor Gaussian model are compared: One adopting only bonds data, and the other ...
Caio Ibsen R. Almeida   +1 more
core  

Behavior and Effects of Equity Foreign Investors on Emerging Markets [PDF]

open access: yes
This paper analyzes empirically the behavior of foreign investors on emerging equity markets in a cross-country setting, including 14 emerging markets from the year 2000 to 2005. We could find little evidence that these investors have brought problems to
Barbara Alemanni   +1 more
core  

Associations of municipality-level income and racial segregation with individual-level tuberculosis treatment outcomes in Brazil: a nationwide cohort study (2010-2019). [PDF]

open access: yesJ Epidemiol Community Health
Hall Q   +12 more
europepmc   +1 more source

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