Econ 101 and the Cost of Cell Phone Plans

My one time colleague (Evan Lawrence-Hurt) posted the following:

In Colombia I was able to purchase an iPhone SIM card for 7 pesos (~$5), got great reception and data that lasted a week with no contract and I could refill it whenever and wherever I wanted. Here in the U.S. I pay Verizon >$100 per month for the same service on a 2 year contract. Discuss.

Since I’m not teaching this semester, I’ve really missed the fun, illustrative graphs that can get at the heart of a question. First, the set of disclaimers. I have no special expertise in the complicated field of cell phones. This is a gross simplification, and probably wrong in a bunch of ways. I did not spend the time to actually look at data points such as regulations, market concentration, comparative consumer buying power, etc.

In the cell phone market, the biggest cost are no doubt fixed. The fixed cost of laying down physical communication lines, building towers, buying/leasing wireless spectrum cost a lot more than the marginal, per-user/megabyte cost, which in small quantities is near zero. Also, irrespective of the regulation regime, it is very difficult to have a very competitive market. Cellular providers are close to what is called a natural monopoly. This means that once fixed cost are covered, the price that is charged is determined mainly by two things: the composition of the demand curve and the ability of the telecom companies to price discriminate.

So, if we 1) assume that the market is similar to a simple monopoly (and ignore price discrimination), 2) realize that because American’s have more disposable income they have a higher willingness to pay, we can draw the simple monopoly set up for each country:

I apologize for the crudeness of these charts and this analysis, but I think it actually gets pretty far. We  start with the two demand curves. The higher disposable income in the US is reflected by the higher demand curve (willing to pay more at any quantity). We then put in the marginal cost curves, which for simplicity I’ve kept low, constant and the same across the two countries. The marginal revenue curve is the extra revenue the monopolist sees by lowering the price and selling another plan. Because the monopolists are not price discriminating in this example, it is a simple downward sloping curve.

A profit maximizing monopolist will sell at the point where MR=MC. While the quantity that this happens at is not very different across the countries (looks to be near 40% in this totally made up example), due to the different in the demand curves the price that reaches the profit maximizing quantity is actually very different.

So what this very simple analysis tells us, is ignoring any differences in regulations, market structure, population density, etc, a lot of the variation in prices could potentially be explained simply by the differences in consumer disposable income across countries.

The Free-Market Case for a Strong Social Safety Net

My time constraints mean this needs to be brief, but I think one of the strongest arguments for a strong social safety net comes directly from free-market economics. Let me explain.

In last night’s snoozer of a presidential foreign policy both candidates argued that they would be better able to project American jobs from foreign competition. Obama in particular pointed to tire tariffs on China as a major success. But these tariffs are an economic disaster that the American consumer is paying for (see A very conservative estimate says that each job has cost consumers nearly $100,000 a year.

There is no unified lobby for the American consumer. When we all take small hits, it gets ignored.

Instead of pursuing really bad economic trade policy that cost the American consumer loads of money to save a couple of jobs, we would be much better off pursuing free trade, helping the world specialize and grow. By lowering the cost of job loss, a strong social safety net can free us up to pursue good policies at a cheaper end cost to consumers. There is a true pareto improvement to be had here.

Sadly, this is a case of the all-to-often true: when the political parties agree, they usually are both wrong. George W pursued similar policies in the steal industry, with will documented massive cost to the American consumer and economy.

Broaden the Base and Lower the Rate

The Romney/Ryan tax plan calls for lower tax rates. They argue that the plan is going to be at least close to revenue neutral due to some unspecified base broadening. I’ll leave that as stated.

My question is, if this is such a good idea, why not pursue the same sort of base broadening plan with Social Security/Medicare. Combined FICA taxes are 15.3% when you include both employer and employee contributions (and ignore the temporary payroll tax decrease). In 2010, this generated $781.1B in revenue (2011 report). The big catch with these taxes are they are regressive. Dollar earned beyond $108,000 are not taxed. If we broadened the base (taxed those earnings) we could substantially lower the rate.

A quick calculation: if we just stuck to wages we could lower the rate to 9.83% (based on BEA compensation data). If we widened it to include non-wage income (i.e. capital gains) the rate could be dropped all the way down to 6.02% (based on BEA personal income data).

It would seem that this proposal would appeal to the Romney/Ryan idea of broadening the base and lowering the tax rate, while appealing to the Democratic idea of soaking the rich. Why then is it not even being discussed?

Note: The reason it historically has not been discussed is SS/Medicare was not supposed to be a “entitlement”. It was a designed as pay in / pay out system, where benefits were not means-tested and contributions were not regressive. I think since we’ve been calling them entitlement programs, and thinking about them as such for quite some time we should make the move to structure them that way.

UPDATE (9/26): My post was a bit hasty. I corrected Medicaid to Medicare. However, I realized that Medicare is not actually subject to income restrictions (only SS is), and the revenue number I quoted was only for Social Security anyway. Here is the redone, back of the envelope calculation, with some additional  notes:

Excluding Medicare, the current tax rate is 12.4% (combined employee and employer). The rates with the broader base are the same at 9.8% and 6.0% – and the tax reductions for each would be 2.6% or 6.4%. For the median worker ($50,054 p31), these two plans represent increases of $3,200 and $1,275 respectively. To put this in perspective, between 1967 and today (45 years) median income rose about $8,000.

Gas is Still Too Cheap

Yesterday, for the first time, I spent more than $50 to fill my tank of gas. I do not have a particularly big car (it’s a Subaru Legacy), but a combination of a very empty tank and more expensive gas than usual (was $0.13 cheaper this morning, burn!) caused my to set the record.

The president and Detroit recently agreed to raise the fuel economy standards. Eduardo Porter has a great piece in the New York Times demonstrating why this is a poor strategy. If we want less of something (gas usage) we need to make that more expensive (tax it).

in Britain, where gas and diesel are taxed at $3.95 a gallon, the American automaker Ford sells a compact Fiesta model that will go nearly 72 miles on a gallon. In the United States, where gas taxes average 49 cents, Ford’s Fiestas will carry you only 33 miles on a gallon of gas.


We Need More Revenue

I came across in interesting sentence in the CBO analysis of Paul Ryan’s budget proposal: “The path for revenues as a percentage of GDP was specified by Chairman Ryan’s staff. The path rises steadily from about 15 percent of GDP in 2010 to 19 percent in 2028 and remains at that level thereafter. There were no specifications of particular revenue provisions that would generate that path.” (p11)

Here is a historical look at Federal Government revenues as a percentage of potential GDP:

The truth of the matter is the federal governments revenues are at historical lows. In fact, looking back as far as the FRED data source goes (1950s) we have never had such a long time where revenues have remained under 16% (excel data here). The truth of the matter is that in order to restore fiscal health, revenues (i.e. taxes) have to go up. Granted a lot of the drop in revenue has to do with the recession – less people working and earning less money means less income. You can clearly see the recessions and booms effecting receipts. While raising taxes in this economic climate may not be the soundest policy, long term even Paul Ryan agrees that we need more revenue. He and Romney just like keep it vague by saying that they will “broaden the base” instead of going out there and saying that taxes may actually need to return to the Reagan rates to restore fiscal health.

Olympic Medals Over Time – Post Olympics Update

I’ve updated the charts below to include the results from the just completely London 2012 games.

This was a very good Olympics for the USA. Ignoring the boycotted games of 1984, and the barely attended games of 1904, this was the most Olympic gold metals the United States had ever brought home. This is significant achievement in an era where the global economy is (happily) starting to catch up. In 1999, the US hit a post-1970 peak of 28.4% of world GDP and by 2011 this had fallen steadily to a post-1970 low of 25.5% (post 1970 because the easiest data source, USDA, only went back that far). FYI, those 46 gold medals only represent 15% of the total 302 gold medals awarded, so maybe we’re punching below our weight in terms of GDP.

While much has been made of the achievements of the British team (which I do not want to diminish), their leap from 2004 to 2008 was actually more significant. Team GB went from 9 gold medals in Athens to 19 in Beijing – more than double. They added another 10 this year, for 19 total, but that was just over a 50% increase – substantial, but not as dramatic as four years ago.

After a lot of early disappointment, Russia actually improved their gold medal haul over Beijing. After a slight improvement in Beijing, Germany hit a new post-boycott  low.

China dropped off significantly from when they hosted, showing more evidence of a home-field advantage effect. NPR had an interesting piece discussing how this effect comes into play (thanks to my brother-in-law for pointing me to that). Ignoring last year’s bump, China’s trend line shows a pretty steady climb. This sets up a pretty good battle for supremacy in Rio four years from now. However, regardless of who is expected to win, I think we all will be rooting for NBC to broadcast the games live this time!

Why Money in Politics Matters

I often hear a lot of people complain about politicians buying votes – outspending their opponents to win elections. This pisses me off. Not the fact that politicians spend this money. Not the amount that is spent (which is famously, less than we spend on potato chips). What bothers me is the naivete present in that phrase: “buying votes”. I do not think they are using that phrase to mean that a transfer of money to voters is happening conditional on a vote. This happens frequently in other countries, and it diminishes the global struggle for democracy to call what goes on here “buying votes”.

What money typically buys in US elections is eyes and ears. It pays for TV ads, campaign mailers, door-to-door campaigns. Money is used to disseminate positive information about the candidate, and negative information about the opponent. However, this information is only effective to uninformed voters. For those who have done their research, a flyer with a positive spin on a candidates record is not going to add much. For informed citizens, attacks reflect negatively on the candidate especially when they stretch the truth. The fact that spending money on campaigns is so effective is not an indictment of the political process, or politicians. It is a rebuke of an American public that is more interested in watching project runway than being informed citizens.

A representative democracy allows us the luxury of only having to cast a federal vote every two years. We do not have to know about every bill and every issue. But do the research, be informed, and vote according to what you believe. The only way to take money out of politics is to minimize its effectiveness.

Olympic Medals Over Time

I put this chart together because after reading this BBC article I was interested in seeing the visual. Apart from the well known and discussed rise in China, and the fall in both Russia and Germany, what strikes me is the truly remark consistency of the US gold medal count. Aside from the 1996 Atlanta Olympics (with the home field advantage boost), since 1988 the US has received either 36 or 37 medals. Going back further, in 76 and 72 Team US had 34 and 33 medals respectively (I skipped 1984 and 1980 due to the boycotts).

And here are the actual numbers:

Notes: Germany includes both East and West. Russia includes the unified team for 1992.

UPDATE: I took a look at the full historical medal counts for the US. This consistency is not new! While there are obvious outliers – 1896 first olympics, 1904 the US was the only team in half the events, 1980/1984 boycotts (which I excluded in the trend) – it is extraordinary how much in the world has changed over the 112 years, yet Team USA pulls in about 36 golds in the summer games. Also, the outliers balance themselves out: average including them 36.58, average excluding them 35.41.

The Private Sector

[DRAFT] Carpe Diem posted the following chart, which I’ve seen elsewhere. I find it interesting because of the strong rightward lean of that blog.

So, we can see the Obama administration instituted a massive increase in government spending which is crushing the private sector and holding back growth! Oh wait… that’s not the story at all. To be fair, Mark Perry was not trying to make that point but I do hear it often enough. Many fair, and strong arguments can be made against big government. Many fair, and strong arguments can be made against the Obama administration. The argument that Obama has ballooned the size of government and is killing growth just simply does not hold any water.

Uncertainty vs Uncertainty

[DRAFT] “Uncertainty” plays a major role in the debate about what ails the US economy. Conservative bloggers, columnists and economists tend to emphasize the role of uncertainty and blame the sluggish recovery on government actions which may increase uncertainty. Tax policy and health care reform are the two big ones. I definitely have doubts about some of their specific claims in regards to the degree of uncertainty present in these issues, and the degree to which current policy (and the current administration) is responsible for this uncertainty. But that is not the point of this post. What is missing from the discourse is a clear agreement about what are the important causes and drivers of uncertainty for both businesses and consumers. The idea that uncertainty can have negative economic effects is not a new or controversial idea, even for those on the left. Keynes himself talked about it (uncertainty-and-the-keynesians).

The real disagreement is about the causes and drivers. Investment and spending are driven by expectations of future income, sales for businesses and wages for consumers. I personally feel (without a lot of hard evidence to back this up) that uncertainty about whether you are going to have job 6 months from now is going to hold spending back much more than uncertainty about whether the tax rate on your income will be 22% or 27%. Likewise for businesses, I think uncertainty about the ability to move future products holds back investment and growth a lot more than the possibility of increasing health care costs.

I would really like to see this argued and discussed. Instead I see the left-leaning pundits yelling “DEMAND” while the right-leaning shout “UNCERTAINTY”, without much of an agreement about terms. It’s really both.