Abstract
Since covid-19 outbroke in January 1st ,2020, many disasters happened in these two years, for example medical resources are in short supply for every patient. All those disasters caused chaos in all over the world, so caused investors lost confidence in financial market. The prices of stocks were dropped so rapidly, almost all markets influenced by covid-19 virus. This paper will focus on retail industries which have close connection with consumers lives, anyone cannot live without them. People still have faith in retail industries, but still these industries had impact from covid-19. To compare the changes of retail industries before covid-19 virus with after covid-19 virus, I used Index model and Markowitz Model computed their results, stand deviation and Maximum Sharpe ratio. From the results, it is no hard to tell risk of retail industries were small, their standard deviations all between 0% to 15% no matter before or after covid-19 virus, which can help investors strengthen confidence and did not lost money. In conclusion, if retail industries can complete transformation, they only be impacted by a short time and become great portfolio for investors.
Highlights
It has been two years since covid-19 been brought out from January 1st,2020, and many disasters happened in these two years, natural calamities, medical resources are in short supply for every patient, included financial market turmoil
The results suggest that the retail industry is preferred by investor if they have following transformation: (1) Change the retail model and promote unmanned distribution
The epidemic exposes the importance of food healthy, and it is expected that people will regain their attention to food healthy
Summary
It has been two years since covid-19 been brought out from January 1st ,2020, and many disasters happened in these two years, natural calamities, medical resources are in short supply for every patient, included financial market turmoil. Covid-19 virus had already changed shopping list of consumers, if make-up retail industries like LRLCY could produce a new channel for “cooking fast at home” could help the quantity of sale during covid-19. UL had a very strong charging power with its suppliers as usual, because it had 66 billion of dollars mobility cash flow while other companies were nearly going bankrupt [9] In a word, it is right time for different retail industries changing and completing transformation in various ways. UL prices remained much more stable than LRLCY, and there was a little change in the prices of UL from $30 in 2009 to $60 in 2021, a slightly soared in the prices of LRLCY from $20 in 2009 and $70 in 2021 It seems like covid-19 did not have impact on these retail industries except COKE. 5.wi≧0 for all i All weights are bigger than zero or equal to zero
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