EconAir

    WHY STOCK PRICES GO UP   The movement of a stock index such as the S&P 500 or an individual stock depends on two things:   Earnings per share (EPS) and changes in EPS. Stock price/earnings per share ratio (PE ratio) and changes in the PE ratio.   If the PE ratio stays the same, an increase in EPS leads to an increase in the stock price. The same is true of a stock index. Rising EPS combined with a rising PE ratio is often the reason why a stock goes up more than the average stock.   Well, that was easy. Well, not really.   The stock market is “forward-looking,” that is, it tries to anticipate changes, especially changes in EPS and the PE ratio. There is a great amount of forecasting. But since the forecasted changes are in the future, they are inherently uncertain. The forecasts of some companies’ EPS are more uncertain than others. Some are very uncertain. For example, the future sales and earnings of a small biotech company may depend on the ...

    Full disclosure.    I’m a retired professor of Economics.  I was a full-time professor but also taught as an adjunct at other colleges. I taught both traditional age day students and adult night students. I designed and taught online courses. I was on my college’s budget committee for many years and twice served on the accreditation review committee.   Before becoming a professor, I was an economist and strategic planning manager at three large corporations, a consultant to small businesses, and ran a small company. I’ve been on the boards of five nonprofit organizations.   What Does Your Tuition Buy?   There is a private college near me that charges full-time students tuition an average of $40,000 a year (after discounts off of list price). About $4,000 a course.  The professor is paid about $8,000 to teach a course (half that if the professor is an adjunct).  Assuming 20 students in the course, each student is paying...

    A Professor’s Guide:  How to Be a Superior College Student   This is a summary of what I’ve observed during 25 years as a college professor and student advisor. There are many online posts, YouTube videos, and books on how to be a good college student but most of them are mostly lists of generalities. This post is from a professor’s perspective (not usually made public). It gives specific, helpful hints on how to perform better as a student.   To be a superior student, you must become a skilled student, use your limited resource (time) efficiently, and understand your market – professors.   This post also discusses a strategic plan on how to finance college.   How to read a textbook For each new chapter, look at the end-of-chapter summary (and any online summary) first. That tells you what’s important. Concentrate on this material.   Be an active reader. Underline. Make marginal notes. Talk to yourself (“What the hell does this mean?”) Ha...

    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...