This study aims to investigate the influence of different types of trust on the installation of the COVID-19 Contact-Confirming Application (COCOA) in Japan with data collected from both installed and non-installed users. Despite the country's digital readiness, Japanese people hesitate to...

This paper aims to analyze how the prevalence of COVID-19 infection has affected the adoption of the contact-confirming application in Japan and how network externalities have emerged in the diffusion process. Japan's COVID-19 contact-confirming application (COCOA), launched on June 19, 2020,...

Similar to many countries around the world, Visegrad countries (Poland, Czech Republic, Slovakia, and Hungary) have been hit hard by the COVID-19 pandemic after the second half of 2020. The outbreak was handled with both success and challenges, experiencing severe declines in economic...

This paper aims to analyze how and why Japan's new coronavirus contact tracking and tracing application has not been supported by people and in effect been ineffective in preventing the spread of infection of COVID-19. Ministry of Health, Labor and Welfare of Japan released COCOA on June 17,...

This paper aims to examine how two recent external shocks-the Covid-19 pandemic and 5G services-are transforming online shopping submarkets in Korea by estimating the effects of these two shocks on mobile shopping sales and conversion, which refers to substitution for shopping over fixed...

This paper uses the COVID-19 pandemic as a case study to investigate the direct and indirect effect of beliefs of others on respondent's own beliefs and on their individual consumer sentiment. In a new online consumer survey with randomized control trials (RCTs) in Thailand and Vietnam, we...

This paper aims to provide reliable estimates for the COVID-19 contact rate of a Susceptible-Infected-Recovered (SIR) model, From observable data on confirmed, recovered, and deceased cases, a noisy measurement for the contact rate can be constructed, To filter out measurement errors and...

In spring 2020, governments around the globe shut down schools to mitigate the spread of the novel coronavirus. We argue that low-achieving students may be particularly affected by the lack of educator support during school closures. We collect detailed time-use information on students before...

We study individual demand for COVID-19 antibody tests in an incentivized study on a representative sample of the US population. Almost 2,000 participants trade off obtaining an athome test kit against money. At prices close to zero, 80 percent of individuals want the test. However, this broad...

Public health experts caution that global warming increases the likelihood of novel coronaviruses and amplifies their impacts. Such contagions are virtually unique in their ability to inflict catastrophic worldwide harm. Even more alarming is the forecast that future coronavirus pandemics will...