Sunday, June 7, 2015

On my own "Unsolicited solicitation of advice"

Five years ago now, I first reached out to figure how to extend my knowledge formally, to the director of graduate studies at the economic department at the University of Illinois - Chicago.


Unsolicited solicitation of advice:

You do not know me, but I have a question.  I have become more and
more interested in economics in the last few years.  As the
re(de)pression came about, and it looked like there was no fact no
‘end of depression economics’ and instead the field remained at
contention in reference to the large structural aspects, I have become
interested to the point of self educating myself.  I have followed the
contemporary debates in the field and that has sent me back to
theoreticians going back to when it was called ‘political economy’
such as Smith, Marx and Hayek.
I want to go back to school, but I am not sure the track to take.  I
have a degree and some graduate study in English, so I can understand
the rigor of advanced study.  I have an objective side too.  I studied
chemistry before dreaming of being a writer.  I have taught chemistry,
both as a TA in college and at the high school level.  If and when I
enroll in a program, I will have to brush up on my mathematics; I
realize this.  However, the more I think of what I want to do, the
less it has to do with applying my liberal arts degree and the more it
has to do with reeducating myself in an area of study that explores
the inner and outer workings of society (not to be too deterministic
about things).
My question is simple: What path do I take?  Do I go back for a BA?
Should I, or even can I, enroll in an MA program and try to fill in my
knowledge? Alternatively, do I remain an interested layman, on a
program of self-education with my interest remaining hobby-like?

Thank you,

J. Edgar Mihelic





And she was nice --

Hi J. Edgar,

   If you have a strong interest in Economics, I would suggest that you
apply to UIC for admission as a non-degree student. In this capacity,
you'd take selected courses in economics and mathematics.  If you do well
in this coursework, you could then go on from there to a master's in
Economics.

  Should you choose to go this path, we'l be happy to guide you on the
coursework.

   With best wishes,


------------------------------------------------------------------------
Evelyn L. Lehrer




But I'm still sitting here trying to figure it out (and complete an MBA that is more instrumental than theoretical).

Tuesday, June 2, 2015

The Case of Walmart v.Joseph Casias

Casias is a father of two who from 2004 to 2008 had risen through the ranks of Walmart employees to be honored with the title of “Associate of the Year,” an honor that goes to only half a percent of all employees. Not all is well, as Casias later had a workplace accident. Twisting his knee at work, the Walmart policy was such that a drug test was dictated. Casias was found to have the chemical residue of marijuana in his system. By policy, Casias lost his job. The story does not end there. Casias was also a victim of inoperable brain cancer. The marijuana is his system had been prescribed to him by his oncologist. Walmart stood by its policy and did not accept the medical card issued by the state he was living in as an acceptable excuse (p. 111-2).  The story does not end there, however. Casias was not just a brain cancer victim, he was a continued survivor. According to the ACLU, which is suing Walmart on behalf of Caisis, the pain from the cancer had been debilitating to the point where Casias was on heavy opioids, which both did nothing for his pain and left him nauseous. The marijuana prescription which was legal under state law and given under the direction of his oncologist, was against policy where opioids were not (Casias v. Wal-Mart).
The question then follows about who is correct. Should Walmart disregard its policy and give Casias his job back because he is an exceptional employee and who was following the law of his state? Or should Walmart instead be constant in its policy so that the termination is final - after all, marijuana is illegal under federal law? Or is this not an issue of legality at all, and Casias should not be allowed to work for Walmart because of the danger posed to his fellow workers and customers?
The easiest issue to look at the first instance. In spite of legal restrictions, is Joseph Casias a threat to anyone he works with? He is most likely not. According to his testimony, he never used marijuana on the job or came into work under the influence of the drug (Casias v. Wal-Mart). What happened was that Casias tested positive for metabolites of THC, the active ingredient in marijuana. This is the same as having glucose in your body after you have eaten cake. It is not cake in your system anymore, but just what is hanging around when it is done having that delicious tummy-filling effect. The problem is that even anti-drug scare sites hosted by the government note that these stay in your system for up to weeks after exposure (Marijuana: Facts for Teens).  So if the question is was Casias intoxicated at work, its impossible to answer except through observation. The fact that alcohol can be detected to such mathematically precise numbers gives the public a misconception of how inebriation can be measured. The fact is that two different people can have highly varied levels of impairment at the same blood concentration: it is why field sobriety tests exist. Did Casias appear intoxicated? There is no positive evidence. The sole mark against him was that chemical that showed up in his blood. And there’s no telling when that came into the system.
Having determined that Casias was not a threat to anyone in his direct area, the question becomes about the applicability of the proper federal law and the company’s policies as they pertain to the pertinent laws. Here the evidence is not as clear. On one hand, marijuana is still considered a scedule one narcotic, meaning that is has no medicinal value. The overall trend in the country is towards acceptance, where several states have started allowing medicinal use such as Casias was doing under the direction of his physician. Other states are going so far as to legalize the plant for recreational purposes. The Federal government has had a varied take on this progression. The Obama administration said that it would prioritize such enforcement actions, but the nascent industry still has had the DEA pressure it in various ways. The state of legalization is in flux. The states have led on this issue with Washington falling far behind. At the Federal level they are still under administrators who came of age during the “War on Drugs” era that saw a disproportionate number of minorities be locked away for significant fractions of their lives based on nonviolent drug offenses. If economically it is best to ignore sunk costs, it is almost impossible to do it in a political or policy context. The march of marijuana legalization is such that even recently the federal government had to put out a memo that marijuana is still illegal to use or possess (Memo to Federal Workers). This shows a consciousness of the reality. The social norms are changing, The problem is that there are people who will suffer while the wheels of history make their turn -- people like Joseph Casias.
Casias broke federal law by using and possessing marijuana. That fact is not under debate. This is mitigated by the fact that he was in compliance with the relevant state rules. The autodidactic constitutional scholar can go to the Archives and find the Constitution. In it are enumerated powers saying what a congress can do, and then a bit of the Bill of Rights saying that what the federal government cannot do is given to the states (The Constitution of the United States). This simplistic reading has been debated back and forth for the duration of the republic and complicated.  At issue is a different question, however, than federalism versus states rights. Ultimately, Walmart kept to a policy that is a derivative of the original anti-drug scare mongering, There is a zero tolerance policy for marijuana under their policy. Having a hard policy at a corporate level makes sense because it protects you from the potential of favoritism. What it  also does is erase the subjectivity that would be necessary in a case like this. Casias was demonstrably a quality employee, and as such honored by the company for his service. If he was under care with the narcotic and that would have been fine under policy is unclear. The policy is standard, as has been seen with the federal government’s application of the same policy. The difference is that Walmart is not a governmental body, nor do they exist to enforce the rules of the government. The policy of mandatory drug testing after an accident is one that is created so that they can minimize their own culpability if a worker injures themselves at work. If the worker can be shown to have broken the law, the company will not have to pay for the injury. It is a defensive and reactive stance. Does it make sense as a company under a capitalistic, market system? From Walmart’s perspective, the answer is yes.
But is it right? Ultimately the answer to that circles back to the first part of the discussion. Caisis did not appear to be inebriated and it was only after the fact that it came out that he was a patient under the care of a doctor who had prescribed medical marijuana to treat his cancer. Other drugs would have been acceptable, but Caisis became a test case for states moving into the gray area that the federal government has been uncertain on. This is where a human element would have been crucial. Someone from the public relations department from Walmart had to have seen this and been very frustrated, The polls may have looked slightly different then, but the people who are accepting of marijuana use, especially for medical purposes, are Walmart’s customers. A sizeable majority of Americans are in favor of legalization, according to respected polling outfits like Gallup (Americans Favor Legalizing Marijuana).  Being dogmatic on policies such as those that affected Caisis is alienating to a large number of Americans, and Walmart does not need any more negative marks against it in the public eye. Therefore, Walmart should reinstate Caisis not just since it is utilizing talent in the right way, but their reason for dismissal is fading fast into the past. Even someone with a less sympathetic back-story should be able to use their medicine on their own time as long as they do not create a risk for those around them while they do their work.
















References
ACLU. (2015). Casias V. Walmart. The American Civil Liberties Union. Retrieved From  https://www.aclu.org/cases/casias-v-wal-mart
Kinicki, A., & Fugate, M. (2012). Organizational Behavior: Key Concepts, Skills, and Best Practices (5th ed.). New York: McGraw-Hill Irwin
Madison, J. et al. (1787). The Constitution of the United States. The National Archives. Retrieved from http://www.archives.gov/exhibits/charters/constitution_transcript.html
NIH. (2015). Want to Know More?: Some FAQs About Marijuana. National Institute on Drug Abuse. Retrieved from http://www.drugabuse.gov/publications/marijuana-facts-teens/want-to-know-more-some-faqs-about-marijuana
Rein, L. (2015, May 27). Memo to Federal Workers, Using Marijuana Could Cost You Your Job. The Washington Post. Retrieved fromhttp://www.washingtonpost.com/politics/memo-to-federal-workers-using-marijuana-could-cost-you-your-job/2015/05/27/285b084e-04a9-11e5-8bda-c7b4e9a8f7ac_story.html
Swift, A. (2013). For First Time, Americans Favor Legalizing Marijuana. Gallup. Retrieved from http://www.gallup.com/poll/165539/first-time-americans-favor-legalizing-marijuana.aspx

Monday, May 25, 2015

The Market is Efficient Enough: Robert Shiller's "Irrational Exuberance".

I read this not long after I had read Malkiel’s “A Random Walk Down Wall Street”. Both books came out in new editions this year, and both had been on my long list of books to read in the back of my head.

Oddly enough, both books were compelling and believable. The reasons that this is odd is mostly because one would think that they are diametrically opposed. The entire argument of Malkiel is that you can’t beat the markets consistently, so the best bet is to get into index. This is an acceptance of part of the efficient market hypothesis, where there is no free lunch and arbitrage opportunities disappear and are not predictable.

I can be into Shiller too because there is another part of the EMF that says that market prices are the right prices, so the value of the market is the true value of the market. If this is true there should never be any bubbles. You should also never be able to short sell anything unless you had inside information. But alas, the market can stay irrational longer than you can stay liquid. Bubbles do happen, in all markets and everywhere. Shiller got a bit lucky by having the first edition of this book come out at the point where the dot com bubble was right at the top. Those who had gone all in on technology were not as lucky. As Shiller examines. bubbles can and do happen.

So how can I reconcile the fact that the EMF is the tool I rely on for investing even though I have full knowledge that bubbles happen and massive dollar amounts are lost in them? I answer by saying that the markets are rational enough. Bubble happen, but it is hard to know when you’re in them and you can’t time them. The prominent economist who called the housing bubble beforehand are small in number. If they were calling it, they were dismissed as bearish or too heterodox. Too many people had failed to read their Kindleberger. This time wasn’t different and the bubble popped. Harder to know is when it will pop and at what level. That’s where the EMF works. When it pops, you’re going down with it, but so will everyone else. It makes me think of a couple of quotes. First, Keynes: “Worldly wisdom teaches that it is better for reputation to fail conventionally than to succeed unconventionally,” and then Citi’s Chuck Prince approps the last bubble: “As long as the music is playing, you've got to get up and dance”. Sure, if you were in the main indices you lost half the value of your investments. Of course if you stayed in them you made them all back. Now imagine if you had put all your money into junior tranches of residential mortgage backed securities -- it seemed like a sure thing, but you would have ended up with nothing. It’s not perfect, but the market is efficient -- enough.

Malkiel's "A Random Walk Down Wall Street": Thank God for Active Traders


I have no beef against the active traders. Maybe I have a little pity for them, since half of them have to lose money if the market’s a zero-sum game. That’s more than half, once you start to factor in fees.

I have long ago realized that though I am interested in the workings of the market, I am not going to delve to the minutiae of companies and different trades and try to be smarter than someone else on the other side who thinks he’s doing the same thing. Nope. Malkiel and Bogle figured out a way I could get away with making the most return possible with the least effort possible - indexing.

Basically this book is a defense of the efficient market hypotheses, or at least part of it. As I understand it, there are two parts to the EMF. One is that the price is always right. So that there’s no such thing as a bubble ever because all the valuations of the market price of securities are representative of their underlying value. The other part is that there’s no free lunch. Or basically arbitrage opportunities may exist, but they are not predictable nor do they persist. I think that the second part is more true than the first, and that’s what this book really digs into, showing you that there are no persistent ways to beat the market. If that’s true, then the best way to consistently make money is to just buy the market. Thankfully there are financial instruments that make that possible - and they’re where I have my money. Cards on the table, this book is just a giant exercise in confirmation bias for me, but it is confirmation bias well done in clear writing with a well-organized structure. I read this burning through the pages on a long holiday weekend, and I wanted to send it to my parents. I thought again about that. It might be too late for them since I don’t know their financial positions. Maybe I’ll send it to my siblings.

A final note, though. Even though Malkiel shows convincingly that there is no way to beat the the market, there is an odd paradox. For the market to work, it needs people out there who think that they can beat the market. Even if the best strategy is to buy and hold a low cost index fund, if everyone did that liquidity and price discovery would drop. What someone following Malkiel needs is people who think he is wrong and that they can generate “alpha” (returns above the market). This goes against the second part of the EMF, where arbitrage opportunities can’t exist because if you have a way to beat the market, then everyone has a way to beat the market and then once everyone is in, no one has a way to beat the market.

Be-Having: In Defense of Behavioral Economics

In his new book "Misbehaving", Richard Thaler, who doesn’t even have a Nobel Prize yet, talks about his role in the development of behavioral economics.

It is a fun book to read. If you have read “Nudge,” his best seller with Cass Sunstein, you know that he has some verve as a storyteller. If you’ve read any of Sunstein’s books where his is the sole credited author, you know that that the verve in “Nudge” is from Thaler.

There is some chronological structure to the book, but it is a little looser than a more rigorous introduction to the subject like Kahneman's “Thinking, Fast and Slow”. Thaler is a little more focused on the anecdotal to illustrate some of the general things behind behavioral economics. Namely, people are not necessarily economic actors. In the book he makes the divide between irrational “Humans” and more rational “Econs”. People don’t seem to like Thaler’s division. Many of his critics say that they know human beings aren’t entirely rational actors but they model as if they are. (I think these are some of the same people whose models of the economy didn’t include banks, so I’m not sure if their simplifications are useful).

But here’s the thing. Behavioral econ is fun at the anecdotal level. After some people talking about Macro, the behavioral people are some of the most well known by the general public. That’s if you even accept the premise that they are even economists. Maybe they’re just psychologist trying to horn in on whatever halo effect you get by calling yourself an economist.

The problem is that being fun at the anecdotal level doesn’t mean that you can build strong theories on it. In fact, it might disrupt your theories. Say you think there’s deadweight loss in giving gifts -- but people still give gifts when the most rational economic act would be to give no gift. If you had to give something, then cash is the best gift. It doesn’t have the graphic simplicity of criss-crossing demand and supply curves.

What it can do is allow people to make the best choices. If you are in a situation where people have to make choices, you can make the decision easy for them so that they will make the one that is the best for them in the long run. This is where some other people bristle against the findings of Thaler and his school. The don't like the idea of making the default one thing or another, being afraid of paternalism by people who themselves are irrational actors. The most commonly cited “nudge” is making 401 (k) enrollment automatic. People are slackers, and instead of the default being “no,” you change it it “yes.” That way people are saving their money in a tax-favored retirement fund, when people need to have money for retirement. The point is here that a default has to be chosen and it makes sense to look at the research to determine what choices will be made with what defaults, ands what is the best default.

I don’t just give it lip service. I recently got a raise and I immediately increased my withholding. My take-home increased, but so did the amount I put away. I wouldn’t have thought to do it had I not read books like Thaler’s. It might not save the world, but it will help my retirement.

A couple of notes concerning "Austerity: a History of a Dangerous Idea" by Mark Blyth



  1. The premise supports my priors, so I like the book. Under capitalism the state can create growth, and it can disinhibit growth. The multiplier is greater than one.
  2. Blyth does hit on the Reinhart and Rogoff study early, but does address the failings later in the updated version.
  3. On page 204 in my version, he violates the Godwin Rule. He notes that German expansion westward in the thirties was helped by French post war austerity in the 20s. Ergo, austerity leads to Hitler.
  4. Page 77 includes a Monty Python reference, so his argument must be true.
  5. Overall, the book is an engaging read, and though it supports my priors, it defends them much better than I could.

Tuesday, May 19, 2015

Shun the Rating Agencies



In the fifth edition of Kinickic and Hill’s Organizational Behavior, the authors present the reader with a potential ethical dilemma. At the end of the ninth chapter, the reader is introduced to the ratings agencies (248). The authors call these agencies the “missing character” in the story, and with good reason. Briefly, the reader is exposed to the role in the ratings agencies had in the financial crisis. They call the ratings the agencies – Moody’s. S&P, and Fitch – give as “grades”. They carry forward this metaphor by telling that the securities grades are important because there are some institutions that cannot purchase securities with low grades. The ethical dilemma comes in where the securities did not behave as well as the grades given, and the institutions that had bought well-graded things turned out with failures. The problem is that there is no recourse with the ratings agencies, because they are not legally responsible for the ratings, hiding behind the first amendment and calling these ratings “Speech” (. The secondary problem is that there actually exists competition between the ratings agencies. The can be played off of one another, and they need business. The companies creating the securities to be rated are the ones who pay the ratings agencies, so there is a potential for the companies to go ratings shopping and find the best rating amongst the three main companies. Alas, that is a secondary problem not developed in the text of the book.
What the authors miss is that the grade that the ratings agencies give is a measure of risk. If you buy this security, what are the chances that it would fail? A grade of “A” means that there is basically no chance it will fail. If a ratings agency knows what assets are backing a collateralized debt obligation (what the authors call “‘creative’ with their mortgage related products” (248)) then the rating should be easy to determine based on past history of the bank creating the security and back by similar assets. If a city creates a bond backed by parking meter revenue, all the rating agency needs to do is look at the past revenue from parking meters and project that future growth with a range macroeconomic assumptions to figure out what the chances are that the city will no longer be able to pay and thus default on their bond payments. The agency figures out that risk, and then slaps a rating on that. The higher the rating, the higher the price they will be able to get and lower interest rate they will have to pay. With real-estate backed securities, the mechanism was the same. There is a future cash flow – the house buyers paying their mortgages. There was anticipated growth in the mid-aughts based on the housing bubble. The banks did not just make a bond based on one house. No, they were more clever than that. They took the cash flow of mortgages all over the country. In theory, this meant that if one house or local real-estate market has issues, the bond as a whole would be fine. The ratings agencies took these assumptions, and accepted these, and offered up bonds that were rated AAA, meaning that they had the same minute risk of failure as the government of the United States. It turned out their assumptions were wrong.
Where they were wrong is one word: correlation. The make-up of the bonds was assumed as if one house failed, or one city failed, the bond would be insulated from that failure due to the diversity of assets backing the bond. The problem is that this only holds true if there is no correlation. Correlation is a measure of how often things go together. If an economist ran a study of how related sales of pencils were with the number of rainy days, she might not expect them to be related. But if she then ran a study looking at how related sunny days were with ice cream sales, she might expected to see a spike in ice cream sales when the sun was shining. The models built by the banks and accepted by the ratings agencies thought that the housing sales in different American cities that they used to back bonds were like clouds and pencils; instead, they were like sunshine and ice cream. In hindsight, it seems logical that the housing markets in Phoenix and Atlanta were undergoing the same processes. They were both going up with abandon. Between 2000 and near the peak in 2005, home prices in the Phoenix increased almost 120%, according to the widely respected index of home prices compiled by Case-Schiller (S&P/Case-Shiller Phoenix Home Price Index). While Phoenix was a national outlier, Atlanta went through the same exuberance. According to Case-Schiller, area home prices increased 30%. Both areas subsequently went through drops of a magnitude similar to their rises. This correlation meant that the bonds that were built to fail only in the unlikely event that houses everywhere lost value and people started defaulting on their loans ended up failing because people everywhere started defaulting on their loans when house prices stopped going up at a much greater rate than they had in the previous century.        
The only thing that could have saved those bonds, and in turn the entire financial system, was if house prices never stopped going up. The question is if the ratings agencies should have seen the house prices eventually going down nationally and if they should have seen that correlated bonds backed by real estate should not be rated with as low a chance of failure as the United States’ government. These being the ratings, remember, that creates huge markets for these bonds because there was no restriction on their purchase and fueled the market for more bonds and more mortgages because everyone wanted a piece of the action. Then when there were no more qualified buyers and the market dried up and those bonds started failing – everyone was holding them. They were held by banks as their solid assets, and backed by insurance companies who also thought that they would never fail. AIG almost went bankrupt because they did not have enough capital to pay off the insurance they offered on the Mortgage Backed Securities. Why would they even need to hold capital, those things were rated AAA?
The crux of the problem is that the agencies were handing out ratings without any recourse. The collapse of housing prices is easy to see in hindsight, but to remember the mid-aughts is to remember the home price hysteria. There was more than one show on cable about how easy it was to get rich flipping houses. The media had a field day after the crash looking at isolated examples of people who had bought houses with little money and little cash flow – the so-called “NINJA” or “liar” loans. The myopia of people convinced that this time was different was more than just the individual borrower, and it was institutions and not the individual borrower who bought into the hype. At the center of it were the ratings agencies and the banks. The banks have long struggled to lobby against regulation, culminating in the Gramm-Leach-Bliley Act of 1999, signed into law by President Clinton (Investopedia). The law effective dismantled New Deal regulation that made it illegal for commercial banks to also be investment banks or insurance companies. With the regulatory environment relaxed, the only hope in restraining the banks is the ratings agencies, which are private companies but have an interesting statutory role. The three main agencies with a couple other companies are designated “Nationally Recognized Statistical Rating Organizations” by the SEC. This means that the word of the ratings agencies is almost law (Marston). Being quasi-public bodies, they should be culpable for their mistakes.
The question then is should they have known that price of the various housing markets would fall and then the bonds that they said had almost no chance of failing would then fail? That is a place for debate. There is a theory popular amongst some economists called the “Efficient Market Hypothesis”. Part of this hypothesis is that, in its strong version, that prices are always right. That means that there can be no such thing as a bubble where prices diverge widely from their underlying value and then subsequently fall back down or below their underlying value. This view had a lot more adherents in 1995 than it does now. The argument that bubbles cannot happen was seemingly disproven late in the Clinton presidency, and the ratings agencies should not have been so cavalier with their high ratings. That said, they are private companies so what sort of recourse can be had against them? To sue them in court the government would need to prove knowledge of malfeasance where it looks more like negligence. To bring suit against the, would be to bring suit against capitalism. The ratings agencies were just being paid to bring their knowledge and experience to bear against the chance that a security would fail. The argument would follow that their rating is just one piece of information that an investor should take into account when purchasing a security. The law assumes that there is full information available, and the investor is well informed then the only negligence is if the issuing bank withholds pertinent information. The agency is thus absolved of all guilt.  The weird thing though is that the agencies give their ratings in letter grades, which is a simplistic act. The letter grades make it seem as if they know that they are not in fact serving an entirely well-informed buying public but instead one that is relying on heuristics to judge the quality of the securities. This is the one job the rating agencies have and they demonstratively failed at it.
The solution to the problem is to start freezing the agencies out of their role and bring the rating responsibility into the government. There is a multitude of bodies one could pull experienced individuals from the alphabet soup of finance-related agencies in the national government to serve as new ratings boards. The SEC had essentially deputized these agencies with the ratings responsibilities, so the new government ratings body should be housed in their walls. The private sector should not complain about this move too much, since securities rating falls under the definition of a public good. A rating is both non-rivalrous and non-excludable. The ratings should be more like a utility than a token that goes to the highest bidder.
References

 

Investopedia (2015). Gramm-Leach-Bliley Act of 1999 – GLBA. Investopedia. Retrieved from http://www.investopedia.com/terms/g/glba.asp

Kinicki, A., & Fugate, M. (2012). Organizational Behavior: Key Concepts, Skills, and Best Practices (5th ed.). New York: McGraw-Hill Irwin

Marston, R. (2014, Oct 20). What is a rating agency? The British Broadcasting Company. Retrieved from  http://www.bbc.com/news/10108284

S&P Dow Jones Indices (2015). S&P/Case-Shiller Phoenix Home Price Index.  S&P Dow Jones Indices. Retrieved from http://us.spindices.com/indices/real-estate/sp-case-shiller-az-phoenix-home-price-index