The effect of face masks on Covid-19 transmission is crucial for the health of populations. The effectiveness of face masks in reducing the transmission of Covid-19 varies across primary evidence. To perform a quantitative meta-analysis, we collected 258 estimates from 44 primary studies...

How best to utilize volunteers during medical emergencies is an essential part of hospital compliance planning. Onboarding recruited and spontaneous volunteers during crisis situations require careful consideration of multiple legal issues. Volunteer planning becomes more complex if volunteers...

Burns and Mitchell (1946, 109) found a recession of “exceptional brevity and moderate amplitude.” I confirm their judgment by examining a variety of high-frequency, aggregate and cross-sectional data. Industrial output fell sharply but rebounded within months. Retail seemed little affected...

I jointly use daily data on deaths and public transportation ridership in San Francisco in 1918-19 to estimate a model in which agents choose their level of economic activity based on perceived infection risk, modeled as a function of current and lagged infections or deaths. Agents' choices in...

Clinicians, ethicists and lawyers have long debated the parameters of triage in response to the inevitable disasters that sporadically overwhelm the health care system. Almost universally, they have advocated for open, transparent and consultative triage protocols, guidelines and legislation to...

In April 2020, due to the introduction of lockdown, consumer demand significantly dropped. A year later, in April 2021, when the epidemiological situation caused ever less concern, the consumption of goods and services increased, almost recovering to the pre-pandemic level: for example, the...

The situation with the coronavirus around the world remains rather complicated during February. This being said, many countries (especially in the EU) are on the cusp of the third wave of the pandemic in the second half of February due to new strains. Many governments extended or even tightened...

The real cash incomes of the population in 2020 decreased by 3.0% compared to 2019, the real disposable cash incomes contracted by 3.5%. Consumption model of Russian people has changed in the wake of the pandemic: the share of expenses on services has decreased to near 2016 level, meanwhile the...