what shifts demand curve in a perfectly competitive market

Why were there shortages of toilet paper? How can the price of crude oil be negative? What is the implication of the historically high unemployment rate? Where did the $2 trillion for the stimulus come from? Will this massive stimulus to the economy lead to inflation? Why does the U.S.

And most astoundingly, the benchmark price for crude oil in the United States settled at negative $37.63 on April 20, 2020.

Some industries (such as airlines, oil, and sports) have taken the hardest hits while some others have thrived (online retailer, collaboration technology, and remote learning, for example) during the pandemic. unemployment rate reached an all-time high since the great depression of 14.70 % in April 2020. government signed a massive $2 trillion stimulus package, the biggest economic stimulus in American history. Schools, restaurants, and other businesses have been closed for an extended period of time. There were toilet paper shortages because of hoarding and profiteering. In the U.S., we have witnessed a series of extraordinary economic events. Countries have taken significant measures to fight the spread of coronavirus. The virus has spread to almost every country, infecting more than 10 million people in the United States and 50 million around the world 1 and it is still spreading at the time of this writing.

The coronavirus pandemic has caused unprecedented disruption to everyone’s life.

What shifts demand curve in a perfectly competitive market