Financial contagion, interest rates and the role of the exchange rate as shock absorber in Central and Eastern Europe

This paper studies the impact of external factors on daily exchange rates and short-term interest rates in the Czech Republic, Hungary and Poland during the period August 1997 – May 2001. I find that neither exchange rates nor interest rates are influenced by short-term German interest rates. Nevertheless, I show that shocks to emerging-market risk premia had a significant impact on exchange rates in all three Central and Eastern European countries and on interest rates in the Czech Republic. In addition, studying the second moment of the variables, I demonstrate that Czech and Polish exchange rates were affected by ‘volatility contagion’ coming from emerging markets. I find also some partial support for the ‘volatility contagion’ hypothesis on Czech interest rates. These findings shed some doubts on the alleged theoretical ability of a floating exchange rate – such as in the Czech Republic – to absorb external shocks and insulate a country's domestic monetary policy completely. However, the spill-over effect on Czech interest rates might be explained by the ‘managed’ nature of the exchange rate regime, thereby re-establishing some credibility of the theory.exchange rates; short-term interest rates; volatility; Czech Republic; Hungary; Poland

Excess returns on net foreign assets: the exorbitant privilege from a global perspective

This paper studies net foreign assets and the differential returns between gross foreign assets and liabilities for a sample of 49 countries between 1981 and 2007. It shows that investment income is more important than capital gains in imparting a drift to net foreign assets over the long-run, whereas the latter dominate short-term dynamics. Excess returns on net foreign assets of the United States are indeed exorbitant from a global perspective, only occasionally matched by other countries and mainly accounted for by positive valuation effects. The role of the United States as levered investor did not contribute to its exorbitant privilege. The econometric panel analysis also fails to find a robust positive relationship between leverage and excess returns. Notably, instead, real exchange rate depreciations increase excess returns through capital gains, proportionally to the relative foreign currency exposure. Excess yields on investment income are positively associated with the country risk rating. JEL Classification: F30, F31, F36excess returns, exorbitant privilege, leverage, net foreign assets

Financial contagion, interest rates and the role of the exchange rate as shock absorber in Central and Eastern Europe

This paper studies the impact of external factors on daily exchange rates and short-term interest rates in the Czech Republic, Hungary and Poland during the period August 1997 – May 2001. I find that neither exchange rates nor interest rates are influenced by short-term German interest rates. Nevertheless, I show that shocks to emerging-market risk premia had a significant impact on exchange rates in all three Central and Eastern European count-ries and on interest rates in the Czech Republic. In addition, studying the second moment of the variables, I demonstrate that Czech and Polish exchange rates were affected by ‘vo- latility contagion’ coming from emerging markets. I find also some partial support for the ‘volatility contagion’ hypothesis on Czech interest rates. These findings shed some doubts on the alleged theoretical ability of a floating exchange rate – such as in the Czech Repub-lic – to absorb external shocks and insulate a country's domestic monetary policy comple-tely. However, the spill-over effect on Czech interest rates might be explained by the ‘ma-naged’ nature of the exchange rate regime, thereby re-establishing some credibility of the theory.exchange rates, short-term interest rates, volatility, the Czech Republic, Hungary, Poland

Oil exporters: in search of an external anchor

This paper discusses the choice of an optimal external anchor for oil exporting economies, using optimum currency area criteria and simulations of a simple model of a small open economy pegging to a basket of two currencies. Oil exporting countries - in particular those of the Gulf Cooperation Council - satisfy a number of key optimum currency area criteria to adopt a peg. However, direction of trade and synchronisation of business cycle of oil exporters suggest that there is no single "ideal" external anchor among the major international currencies. Model simulations - parameterised for an oil exporting economy - indicate that a currency basket is generally preferable to a single currency peg, especially when some weight is placed by the policy maker on output stabilisation. Only when inflation becomes the only policy objective and external trade is mostly conducted in one currency that a peg to a single currency becomes optimal. JEL Classification: F31, C30, C51, C61, O24basket, Exchange Rate Regimes, model simulation, oil exporting countries

Foreign-currency bonds: currency choice and the role of uncovered and covered interest parity

Using count-data techniques, this paper studies the determinants of currency choice in the issuance of foreign-currency-denominated bonds. In particular, we investigate whether bond issuers choose their issuance currency in order to exploit the borrowing-cost savings associated with deviations from uncovered and covered interest parity. Our sample includes issuers from both the public sector and private sector. Our findings show that the choice of issuance currency is sensitive to deviations from uncovered interest parity but insensitive, in general, to deviations from covered interest parity. Furthermore, the influence of deviations from uncovered interest parity is stronger for financial issuers than for nonfinancial issuers. JEL Classification: F31, F36, G14, G15, G32bonds, currency choice, foreign exchange, interest-rate parity, international debt securities

Getting beyond carry trade: what makes a safe haven currency?

There is already a substantial literature documenting the fact that low yield currencies typically appreciate during times of global financial stress and behave as safe havens. The main objective of this paper is to find out what the fundamentals of safe haven currencies are. We analyse a large panel of 52 currencies in advanced and emerging countries over almost 25 years of data. We find that only a few factors are robustly associated to a safe haven status, most notably the net foreign asset position, an indicator of external vulnerability, and to a lesser extent the absolute size of the stock market, an indicator of market size and development. The interest rate spread against the US is significant only for advanced countries, whose currencies are subject to carry trade. More generally, we find that it is hard to predict what currencies would do when global risk aversion is high, as estimates are imprecise and often not stable or robust. This suggests caution in over-interpreting exchange rate movements during financial crises. JEL Classification: E44, F31, G15carry trade, global risk aversion, Globalisation, safe haven currencies, VIX

Are there oil currencies? The real exchange rate of oil exporting countries

This paper investigates whether the real oil price has an impact on the real exchange rates of three main oil-exporting countries: Norway, Russia and Saudi Arabia. We create our measure of the real effective exchange rates for Norway and Saudi Arabia (1980-2006) and for Russia (1995-2006), testing if real oil prices and productivity differentials against 15 OECD countries influence exchange rates. In the case of Russia it is possible to establish a positive long-run relationship between the real oil price and the real exchange rate. However, we find virtually no impact of the real oil price on the real exchange rates of Norway and Saudi Arabia. The diverse exchange rate regimes cannot help in explaining the different empirical results on the impact of oil prices across countries, which instead may be due to other policy responses, namely the accumulation of net foreign assets and their sterilisation, and specific institutional characteristics. JEL Classification: F31, C22oil exporting countries, Oil Price, purchasing power parity, real exchange rate, terms of trade

Noninvasive ventilation in COVID-19 patients aged ≥ 70 years—a prospective multicentre cohort study

Funding Information: COVIP study did not have any funding. Publication of this article was funded by the Priority Research Area qLife under the program “Excellence Initiative – Research University” at the Jagiellonian University in Krakow (06/IDUB/2019/94). Publisher Copyright: © 2022, The Author(s).Background: Noninvasive ventilation (NIV) is a promising alternative to invasive mechanical ventilation (IMV) with a particular importance amidst the shortage of intensive care unit (ICU) beds during the COVID-19 pandemic. We aimed to evaluate the use of NIV in Europe and factors associated with outcomes of patients treated with NIV. Methods: This is a substudy of COVIP study—an international prospective observational study enrolling patients aged ≥ 70 years with confirmed COVID-19 treated in ICU. We enrolled patients in 156 ICUs across 15 European countries between March 2020 and April 2021.The primary endpoint was 30-day mortality. Results: Cohort included 3074 patients, most of whom were male (2197/3074, 71.4%) at the mean age of 75.7 years (SD 4.6). NIV frequency was 25.7% and varied from 1.1 to 62.0% between participating countries. Primary NIV failure, defined as need for endotracheal intubation or death within 30 days since ICU admission, occurred in 470/629 (74.7%) of patients. Factors associated with increased NIV failure risk were higher Sequential Organ Failure Assessment (SOFA) score (OR 3.73, 95% CI 2.36–5.90) and Clinical Frailty Scale (CFS) on admission (OR 1.46, 95% CI 1.06–2.00). Patients initially treated with NIV (n = 630) lived for 1.36 fewer days (95% CI − 2.27 to − 0.46 days) compared to primary IMV group (n = 1876). Conclusions: Frequency of NIV use varies across European countries. Higher severity of illness and more severe frailty were associated with a risk of NIV failure among critically ill older adults with COVID-19. Primary IMV was associated with better outcomes than primary NIV. Clinical Trial RegistrationNCT04321265, registered 19 March 2020, https://clinicaltrials.gov.publishersversionpublishe

Care Gaps and Recommendations in Vestibular Migraine: An Expert Panel Summit

Vestibular migraine (VM) is an increasingly recognized pathology yet remains as an underdiagnosed cause of vestibular disorders. While current diagnostic criteria are codified in the 2012 Barany Society document and included in the third edition of the international classification of headache disorders, the pathophysiology of this disorder is still elusive. The Association for Migraine Disorders hosted a multidisciplinary, international expert workshop in October 2020 and identified seven current care gaps that the scientific community needs to resolve, including a better understanding of the range of symptoms and phenotypes of VM, the lack of a diagnostic marker, a better understanding of pathophysiologic mechanisms, as well as the lack of clear recommendations for interventions (nonpharmacologic and pharmacologic) and finally, the need for specific outcome measures that will guide clinicians as well as research into the efficacy of interventions. The expert group issued several recommendations to address those areas including establishing a global VM registry, creating an improved diagnostic algorithm using available vestibular tests as well as others that are in development, conducting appropriate trials of high quality to validate current clinically available treatment and fostering collaborative efforts to elucidate the pathophysiologic mechanisms underlying VM, specifically the role of the trigemino-vascular pathways