EconAir

Roman Legion Why Study Rome? Americans have focused on comparisons between Rome and America twice in American history.  The first time was during the period from before the Revolution to after the ratification of the Constitution and Bill of Rights, when the founding fathers and others looked to the Roman Republic for ideas and inspiration on how to structure the new government. After the American Revolution, the founding fathers, having read the Roman authors detailing the collapse of the Roman republic, worried about internal threats to the survival of their new republic.   The second time was when the United States became a superpower, especially after WWII, and then again after the collapse of the Soviet Union in 1991. Commentators compared America to the Roman Empire at the height of its power. There was some discussion about how America became a permanent warfare state and how it affected domestic democracy and civil society. ...

    INTRODUCTION:  SIMILARITIES AND DIFFERENCES BETWEEN 1929 AND 2020   Gamestop! Short squeeze! Bitcoin! Options! IPOs! SPACs! Hydrogen trucks! Tesla up 800%! Market valuations in bubble territory. And my favorite “blue sky” stock - Virgin Galactic.       At first sight, there was nothing in 1928-1929 similar to the impact of Covid-19 on the economy. Actually, there was. In 1927, Ford closed down his entire company to retool for a new line of cars. 70,000 Ford employees were thrown out of work; many more at suppliers also lost their jobs. But everyone knew that Ford would start up production again.     Ford began production in 1928; 1929 was a record year for auto production. But in late summer and early fall, inventories began to build up.   Both periods were preceded by speculation in real estate. Both ended badly, closing off an alternative area of speculation.   Both periods (1920s and 2010s) saw an increase...

It is a puzzlement why the stock market can go up while the economy is in a virus-caused depression. Much of the economy is in lockdown or closed because of decreased consumer demand. As many of one-third of workers and many small businesses are on federal life-support programs. Profits have disappeared. Large numbers of bankruptcies loom. Given the uncertainty, including recent record numbers of new virus cases, the usual stock evaluation metrics are worthless. With the economy tanking, how come the stock market has gone up dramatically? And continues to go up. THE STOCK MARKET Let’s decompose the stock market. When people talk about the stock market going up or down, they usually refer to an index such as the S&P 500 as the measurement. The S&P 500 is a market-value (cap, short for capitalization) weighted index. The ten most valuable companies account for over 20% of the total value of the index. There are over 3,000 actively traded stocks. But the 500 comp...