Economists Do It With Models

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Grading The State Of The Union Address, Economist Style…

January 26th, 2012 · 6 Comments
Policy · Uncategorizable

First off, I think it’s fantastic that the State of the Union address is available online, even with an enhanced version that includes charts and graphs(!) and makes it totally worth it to watch again. In case you missed it:

I’m actually watching the speech again for the charts and graphs, and also because I was distracted the first time by Chad Ochocinco’s tweets and the State of the Union drinking game:

Anyway, I decided to write about the SOTU address not so much because I wanted to provide political commentary (there’s plenty of that to go around) but because I wanted to share some economic commentary as well as sources for a number of points Obama made that were (intentionally or not) based on actual economic research. That said, plenty of randomness sneaks in, but here goes…

1:12: “For the first time in 9 years, there are no Americans fighting in Iraq.” I have no idea why I immediately got a visual of an American couple in Iraq having some sort of domestic disagreement- I think I have to accept that my natural inclination is to be contrary.

1:26: The graphic of Osama bin Laden with the big X over it is so JV it’s hysterical. I’m also noticing that this recorded broadcast could have been made a lot shorter if the video people just edited out all of the structured applause.

2:17: When Obama pointed out that the troops are great because they aren’t “consumed with personal ambition,” I half expected the sidebar graphic to switch to headshots of Mitt Romney and Newt Gingrich.

4:50: The scale of the graph bothers me, since I find it misleading to exaggerate the perceived differences in the height of the bars when there’s not really a space constraint justification for doing so. I also don’t particularly like a graph about income disparity being used to support the point that “a growing number of Americans are barely getting by,” since whether a household is getting by is an absolute rather than a relative thing. (In other words, I only find it harder to get by when I have less money, not when I simply have less money compared to other people.) That said, I am willing to believe the underlying point anyway.

5:35: Along those same lines, I want people to imagine what this graph would look like if the red line for the rich people was taken off. What I take from this is that real incomes for the middle 60% of the population has grown by almost 50% over the course of my lifetime. This isn’t shockingly impressive, but it doesn’t exactly fill me with rage either, as the overall graph is apparently supposed to do. I would prefer this to be broken out to show how large a percentage of people have seen their real incomes decline over this period, since those are the ones I am actually worried about. (I’m also shocked at how much variability there is in righ-guy income over time.)

5:42: “Technology made business more efficient but also made some jobs obsolete.” It’s important to remember that these same technologies also creates new jobs in other fields. I think the term Obama is looking for here is creative destruction, and it has an interesting history. (A summary of the wikipedia article is basically “it sucks when people get laid off, but creative destruction is an important driving force in economic development.”)

7:43: Holy crap, the graphics people put a ring and a leash on the Wall Street bull’s nose.

8:49: The “Built to Last” theme is back. Most people commented on the somewhat blatant car metaphor, whereas I am wondering which of Obama’s speech writers is a serious Dead Head. (Don’t worry, I have my guesses.)

8:53: I would like to know who decided that an American economy based on manufacturing is the way to go, since it seems in general like an uphill battle. I also don’t want to get into tin-foil-hat libertarian territory, but since when is it the government’s responsibility to figure out what the economy should be focused on? I thought that that was one of the things that markets were good at.

9:56: From a purely economic standpoint, I don’t understand how Chrysler hiring people in the US to build cars is any different from a (publicly-traded) foreign company hiring people in the US to build cars, but I suppose it doesn’t sound as good to boast about how awesome Toyota is or whatever.

10:20: Is it bad that I think the most interesting part of that graphic is that Volkswagen sold more cars than Toyota in 2011? (I’ll give you three guesses what kind of car I drive.)

10:38: Anyone else notice that Cleveland, Pittsburgh, and Raleigh are all in swing states?

10:48: “It’s getting more expensive to do business in places like China.” Isn’t this what I’ve been saying for a while now? What we’ve seen with offshoring, at least in part, is that when American companies send work overseas, they help to develop the economies of the countries they are sending the jobs to. One of the consequences of economic development is an increased standard/cost of living, which means that the labor doesn’t stay as cheap as it initially was forever. This is when some of the companies start looking for a new developing country to use, but if convergence is really a thing, American companies will eventually run out of these opportunities and might as well bring jobs back home. My hypothesis is that this offshoring “problem” will right itself eventually, but that doesn’t mean that job losses are politically tolerable in the short term. Non politically, there are sets of skills and institutional knowledge that could get lost in the process of allowing industries to leave and come back. (The MasterLock example that Obama uses later supports my hypothesis, but I don’t think Obama considered that it also supports a lack of intervention. That said, I suppose most of what he did just was ask nicely for companies to bring manufacturing jobs back.)

10:55: “Meanwhile, America is more productive.” More productive than what? The chart shows worker output per hour over time, which implies that Obama meant “more productive than in the past,” but the connotation was that he meant “more productive than China,” and I don’t know if this is true.

12:00: I LOVE LOVE LOVE that the sidebar explains what the “tax breaks to send jobs overseas” thing really is, since it’s (as I now know) incredibly misleading. The graphic says that the tax breaks are because the expense of shutting down a factory due to moving jobs overseas is a business expense and therefore isn’t part of the taxable bottom line. It’s not like the government is actually saying “Moving jobs overseas? Here, have some cash.” It irks me more than a little that this supposedly special treatment for those companies moving jobs overseas is actually just treating all business expenses equally, and I am disappointed by the purposely misleading wording on this issue.

12:22: Please, for the love of all that is good and holy in this world, stop saying that companies get tax deductions to send job overseas. You’re better than this.

12:32: “That money should be used to cover moving expenses for companies like MasterLock that decide to bring jobs home.” News flash: those expenses are also business expenses and thus not part of the taxable base, i.e. tax deductible. Shouldn’t you, therefore, be bragging that you’re giving tax deductions to corporations who bring jobs home?

12:45: “No American company should be able to avoid paying its fair share of taxes by moving jobs and profits overseas.” I don’t disagree with this on principle, but then I have an easy solution for those looking to minimize taxes- don’t be an American company, or, if you are, make sure you avoid creating jobs domestically right from the start. See the problem? In related news, trying to get multinationals to somehow subsidize companies who stay and do business in America probably isn’t going to make those multinationals want to do business in the US.

14:59: “I will go anywhere in the world to open new markets for American products.” *cough cough* Cuba, anyone? *cough*

15:08: “I will not stand by when our competitors don’t play by the rules.” What rules? Their rules as sovereign nations? I get that countries like China say that they have copyright laws and such and then don’t work so hard to enforce them, which is in fact breaking their own rules. But it’s hard to say at minute, let’s see, 12 or so that you want to subsidize companies who keep jobs in the US and then at minute 15 criticize other countries for doing essentially the same thing.

16:35: “I also hear from many business leaders who want to hire in the United States but can’t find workers with the right skills.” Yep, that’s called structural unemployment, and economists have been aware of the phenomenon for a while now. The “Jackie” example that Obama uses is actually how structural unemployment often gets resolved- notice that the only government role in the flowchart is the existence of the community colleges to offer the training. Therefore, I am reading the takeaway here as “hey Americans, if you can’t find a job, go learn how to do something that companies need.” (Okay fine, if the government is working to facilitate these sorts of company/college partnerships, I can stop being a crankypants and give credit where credit is due.)

18:33: Holy crap there is a Pac Man graphic. Is Obama suggesting that Americans eat their way to new jobs? Michelle is gonna be pissed about this.

19:45: “We know a good teacher can increase the lifetime income of a classroom by over $250,000.” OMG Obama is quoting economic research. #nerdgasm In case you’re curious, here is an article about said research. Said research was even coauthored by one of my grad school classmates. *jealous pouty face* The interesting point here is that the $250,000 is even potentially a lowball figure, since other research puts the value of a great teacher in the neighborhood of $400,000 per year.

20:25: You realize that you’re suggesting “pay for performance” for teachers, right? That’s what “rewarding the best ones” is, after all. Also, I don’t understand what the big deal about “teaching to the test” is about- I mean, it works fine for Advanced Placement courses, right? If “teaching to the test” is viewed as counterproductive, has anyone considered the possibility that perhaps the test is crappy?

21:14: “When students are not allowed to drop out, they do better.” I’m swooning right now…and also having flashbacks to my undergraduate econometrics course. See, economists Josh Angrist and Alan Krueger have a nice little paper that gives evidence of the positive impact of mandatory schooling on wages. In related news, I’ll give you two guesses as to who Obama’s Chief Economic Adviser is.

21:52: I get that the cost of college is intimidating, but student loans versus credit cards is a weird comparison. I mean, I would *hope* that Americans would have more student loan debt than credit card debt, if for no other reason than the optimal amount of the latter is probably near zero. I like the sidebar information on the student loan interest rates (supposed to double in the middle of this year), and I still am perplexed as to why so many student loans are only offered at variable interest rates, even as we warn people against taking out variable-rate mortgages. I’m calling it now- the next disaster waiting to happen is right here.

23:27: I’m looking at a graph that is outlining unemployment rates by level of education. (Spoiler alert: college grads have the lowest unemployment rates.) STOP USING THIS DATA TO IMPLY THINGS ABOUT THE CAUSAL IMPACT OF EDUCATION. Sorry, just had to get that out. Does it not occur to anyone that there is plenty of selection bias in who chooses to complete high school and/or college? See correlation versus causation problem.

24:58: Sooo…you’re against offshoring jobs to other countries, but you are more than happy to bring foreign engineers and scientists to the US to compete with Americans for jobs? Given the structural unemployment issues discussed earlier, I don’t really have a problem with this, but I’m not the one that took issue with offshoring either.

26:50: Government funding of research is a tricky issue. On one hand, there isn’t a lack of incentive for private companies to conduct research that leads directly to innovation and new products. On the other hand, private research is, for the most part, driven by the profit motive, which may or may not always be in line with long-term social value creation. (For example, Pfizer has more of an incentive to develop Viagra than to invent new malaria treatments for developing countries.) Therefore, I think Obama’s case for research funding in the clean energy sector should be more explicitly based on the fact that clean energy has positive externalities (or at least lack of negative externalities) rather than just arguing that it’s the next awesome thing or it creates jobs or whatever.

31:55: Given the “tax breaks” semantics earlier, I really wish there were a sidebar graphic that explained exactly how oil companies get tax breaks.

33:28: Am I the only one wondering why, if being more efficient would really save companies all that money, companies don’t upgrade their facilities and take the other measures that Obama wants to encourage on their own?

34:11: You certainly don’t need to sell me on the idea that it makes sense to undertake needed (or valuable) infrastructure projects during times when people would otherwise be unemployed, since that makes more sense than pulling lots of people out of private-sector employment. (Obama makes this point later, as does the “1.3 million unemployed construction workers” infographic at 35:39.) That said, I think the key words here are “needed” and “valuable.”

36:50: A lot of people took issue with the “no bailouts” theme here, since Obama had earlier talked about how the auto bailouts were productive. I’m willing to give the benefit of the doubt here and interpret this as wanting a system where we wouldn’t get to the necessary bailout stage in the first place.

37:08: “We’ve all paid the price…that’s why we need smart regulations to prevent irresponsible behavior.” Orrrrrrr…how about smart regulations that prevent the irresponsible behavior from becoming everyone’s problem? Let’s not go overboard with the paternalism here.

38:30: Guess who’s not Washington’s Funniest Celebrity? :)

48:08: I love how Warren Buffett’s secretary is the poster child for crippling taxes on working people, when in reality she is probably one of the few secretaries on the planet who is reportedly clearing six figures.

45:00: There’s really no right answer to what one’s “fair share” in taxes is. Economists talk about the “benefits principle” (taxes should be paid by those who benefit most from what the government provides) versus the “ability-to-pay principle” (taxes should be paid by those who can afford to), but these principles don’t provide much specific guidance. What really strikes me in the debate is the issue of absolute dollars versus percentage points- for example, even if tax rates (i.e. percent of income paid in taxes) were the same for everyone, the person making $1 million per year would still be paying 20 times as much to the government as someone who makes $50,000 per year, but this somehow gets overlooked in the debate. (In related news, if you really want to pay your fair share in taxes, there’s nothing to stop you from writing a check to the IRS.)

49:00: What’s this about insider trading by members of Congress? Yeah, apparently there’s an exception to insider trading laws for members of Congress. Does it matter? Yeah, apparently members of Congress get pretty consistently higher rates of return on their investments than does the average person, which suggests that they are actually taking advantage of their exemption in some way. That’s what I call a job perk. =P

52:00: “That’s why my education reform offers more competition and more control for schools and states…” Again, economics FTW- Economist Caroline Hoxby has focused much of her career on looking at the effects of increased competition on school performance, and it’s nice to see that people are paying attention. (Also, for the record, Prof. Hoxby was basically the economist darling of the Bush administration.)

Okay, Tom Vilsack, you can come back now, and Joe Biden, you can go take that nap you’ve been dying for.

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Videos: More On Gross Domestic Product…

January 25th, 2012 · No Comments
Videos

I promised you more on Gross Domestic Product, so here goes…

You can see both the videos and articles organized in what I hope are useful ways here. You may have also noticed that the latest articles are posted in the left sidebar under “Econgirl at About.com” and the latest videos are posted in the right sidebar under “Economics Classroom.”

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Dynamic Pricing: An Economist’s Dream, And A Human’s Nightmare?

January 23rd, 2012 · 3 Comments
Buyer Beware · Econ 101 · Markets

A simple supply and demand analysis suggests that normal market forces cause prices to increase when demand increases:

The bottom line is that, after a demand increase, not everyone can get what they want at the old market price. Either the price can increase, which serves both to encourage firms to produce more and to curb demand, thus bringing supply and demand back into balance, or a shortage can persist at the old price and some willing consumers can be left out in the cold. Or, in picture form, this:

If the price of the item doesn’t increase, there will be a shortage in the amount of Qd minus Qs. Now, enter the concept of dynamic pricing. Dynamic pricing simply recognizes the fact that demand for an item is not constant over time and, as such, adjusts the price based on either forecast or actual demand so that supply and demand stay in balance. This, not surprisingly, results in higher prices when more people want something and lower prices when fewer people want something.

Economists generally like this concept, at least in theory, since shortages and surpluses are economically inefficient. Humans, on the other hand, often get frustrated by the practice, as evidenced by the experience of customers of the car service Uber:

On New Year’s Eve, Uber, a start-up in the city, adopted a feature it called “surge pricing,” which increases the price of rides as more people request them.

Although New Year’s Eve was very profitable for Uber, customers were not happy. Many felt the pricing was exorbitant and they took to Twitter and the Web to complain. Some people said that at certain times in the evening, rides had spiked to as high as seven times the usual price, and they called it highway robbery.

Rationally, I know that it’s better to have the option to get a good at a high price and decide whether or not I want to buy it than it is for the good to simply not be available. Also rationally, I know that the higher prices incentivize drivers to keep driving people around when cars are needed rather than go home and have some belated new year’s champagne instead. Humanly, I’m decently sure that I would be pissed if I ended up paying $135 to be driven one mile as the guy in the article had been.

On the surface, it seems that the people complaining either don’t understand economics or are acting “irrationally.” This is where a lot of economic analyses stop, and they tend to conclude that people just need to accept that dynamic pricing is efficient. Unfortunately, the situation isn’t that simple.

Let’s say you are trying to plan an evening- at the very least, you need to decide where to go to eat, where to go for drinks after, and how to get to these various locations and back home. In order to optimize your consumption, you need to know the relevant prices of all of your options, and acquiring this information isn’t free. Luckily, a lot of prices can be inferred from past experience when they are not readily available, but such inference requires that prices don’t fluctuate too unpredictably. Additionally, there is a degree of path-dependency in this series of choices- for example, not taking the car to go out precludes the option of taking the car to get home, so it’s important to know prices before you’re ready to consume an item. Therefore, there is a cost of uncertainty in prices that has to be factored into the efficiency calculation.

Does the inefficiency due to price uncertainty outweigh the inefficiency created by shortages and surpluses? I don’t know, and it’s a really hard thing to calculate. That said, if I wanted to increase efficiency, I would probably focus on reducing the consequences of price uncertainty by increasing the transparency of the pricing process and providing information that would help customers anticipate price fluctuations. Or, I could recognize that I don’t in fact work for Uber and start a futures market for Uber rides instead.

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Videos: Introducing Gross Domestic Product…

January 20th, 2012 · No Comments
Videos

Next up are videos on GDP (since I’m trying to do both micro and macro for people this semester), so here’s what I think is a good start. You will notice that I even have written articles to go along with the videos this time, if by “go along with” I mean “repeat almost word for word”:

Article: Gross Domestic Product

Article: The Expenditure Categories of Gross Domestic Product

As I mentioned in an earlier post, I revamped the main videos page, so you can see both the videos and articles organized in what I hope are useful ways here. You may have also noticed that the latest articles are posted in the left sidebar under “Econgirl at About.com” and the latest videos are posted in the right sidebar under “Economics Classroom.”

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Tales From The Road, Chicago Edition…

January 18th, 2012 · 1 Comment
Administrative · Press · Uncategorizable

Dear EconoDiary,

Sorry I haven’t written recently- it’s hard starting spring semester teaching the day after an 18-hour drive back from Chicago! (In related news, teaching graduate macro is an interesting challenge, to say the least.) Anyway, the conference went quite well, and Jarret and I even managed to put together a somewhat legit looking setup in the exhibit hall:

It was really nice to get to talk to people about the projects that I’m working on, and I think that people were really into not only the blog but also the videos and About.com articles and such, which is good. What is less good is that Jarret is very proficient at not only selling but overselling- for example, check out the brochure that he made:

Who knew that Word could make text boxes? So far, I’ve gotten a few new videos up (with many more to come soon), and I’ve revamped the videos section into an “Econ Classroom” portal where users can search the videos and articles by topic, course or textbook chapter. (I’m clearly putting my computer science degree to good use. =P)

Despite how fun it was to meet and talk to random people (and even the person who is now in charge of the Simpsons book!), I think the highlight of the conference for me was dinner at Alinea. Oh wait, that’s not right, though it was impressive to have a meal that came with a certificate of completion at the end. :) The real highlight of the conference was the blogs panel, largely because I was fortunate enough to share a table and microphone with the likes of Steve Levitt, Alex Tabarrok, and Jennifer Imazeki. I was really impressed by how similar some of the comments were to things that I’ve said in the past, and it’s always nice to be reminded that there are academics (even “important” academics) who are passionate about getting the word out on economic thinking.

Because Jarret is awesome, he took a Tweeted request to bring stickers and turned it into a video opportunity, so here’s a bit of footage from the panel. In case it’s not obvious, the projector wasn’t working properly, so I had to resort to rambling with only the aid of my trusty iPad:

The Chronicle of Higher Education even did a nice article about the discussion:

In an age of sophisticated social media and rapidly evolving technologies, blogs would seem to be about as sexy as a pair of sensible shoes. Yet as simple as they may be, blogs have also proven to be valuable to economists debating principles and policy, and to faculty looking to breathe life into the teaching of their discipline, speakers said here on Saturday.

The unvarnished and spirited discussions on blogs can also serve a pedagogical purpose, several speakers said, by allowing faculty to enliven their teaching beyond textbooks. Students can see firsthand that the discipline is relevant, hotly contested, and far from intellectually monolithic.

Still, Jodi N. Beggs, a doctoral candidate at Harvard, cautioned against plopping students from introductory-level courses into the middle of ongoing debates without guidance or context. “You want to curate the content you provide to your students,” she said. Ms. Beggs is one of the creators of the blog Economists Do It With Models.

First off, my blog is totally sexier than a pair of sensible shoes, and this is still true when accounting for the fact that even my sensible shoes are quite sexy. Second, “one of the creators?” Is Gizmo getting coauthor credit now? (My actual guess is that Jarret is getting creator credit here, since he was standing next to me when the reporter was asking follow-up questions, which is fine by me.)

On the other hand, I think I can guess what the highlight of the conference was for Jarret:

(The best part about this is that there are 5 other Krugman pictures that Jarret didn’t like and requested retakes of.)

Well, that’s about it…I made it home safe back to Boston, and I now know (via the radio only, I swear) that strip clubs in Toledo give free admission to holders of union cards or Harley keys. I look forward to a busy and productive spring semester!

xoxo,

econgirl

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