First to reach is last to forgive: evidence from the stock market impact of Covid-19

During December of 2019, the world became aware of a new global-scale threat called at first as Coronavirus, which changed the lives of millions of people around the globe. The coronavirus had multiple impacts regarding public policies, economic production, and population dynamics at macro and micro scale levels across countries, the magnitude of these changes remains unknown since the Coronavirus (now called Covid-19) strikes pretty fast at almost every nation of the world (directly or indirectly). In the financial sector, one important aspect of the process of decision-making is uncertainty and risk (Escobari & Jafarinejad, 2019), where returns of the financial assets are attached to the concept of rationality (Blanchard & Watson, 1982). According to this, the economic logic would indicate that the introduction of new information over the individuals which are part of the stock markets might affect the capital accumulation process in the sector, therefore, if this new information provides the notion to increase risk among the investment processes, a probable effect would be the reduction of the value and number of transactions around the stock market, especially when the information might include a global scale risk. At this point, the motivation relies on the importance to establish and measure the impact of coronavirus in the performance of the stock markets, especially in the case of the first affected countries by the virus, China, United States, Italy, Spain, South Korea, and Japan.