« Quick Links | Main | The Commodity Wage »

January 04, 2007

The Minimum Wage

The Democrats were carried into power this past election largely upon an anti-incumbent tide, but one should also acknowledge that House Speaker Nancy Pelosi put together a modest package of legislative priorities in order to give the Dems some substance on which to campaign. The most aggravating of these to fiscal conservatives is the promise to raise the federal minimum wage, a highly popular proposal.

There are lots of reasons to oppose raising the minimum wage, but many opponents are content to rest upon the most obvious: ask any of them, and they'll draw you a supply-and-demand chart in quick order. Labour, especially low-skilled labour, is like any other commodity; raise the price, and quantity consumed goes down. What could be more plain?

Well, as Matthew Yglesias notes, the real world does not always conform to the simple rules of basic economic models. The real world is complicated, and labour markets need not be any different. This complexity will not necessarily fit well into any model, nor could an economist account for all of it ex ante. The only way to see what's going on is to study labour markets with minimum wages.

One might hope that by sifting through the evidence, a consensus might be built about what the effects of the minimum wage are. Unfortunately, the evidence is mixed, and what used to be a consensus among economists has become a debate. There are many studies that show just what theory expects: disemployment due to increasing the price floor for labour. Other studies contradict the theory and show no such effects. And the differences in methodology and data among these studies can vary in bewildering ways.

In order to help sort this out, the National Bureau of Economic Research sponsored a massive literature review on the subject by David Neumark and William Wascher, two economists whose work has generally found negative impacts from the minimum wage. The literature review is huge (150+ pages) and, apparently, very dense. How is a layman to get a handle on this?

Well, one might spend an hour-and-a-half listening to an AEI event where Dr. Neumark and his critics discuss the review. Or one could breeze through a shorter version (24 pp.) Dr. Neumark put together for the Show-Me Institute (PDF). Both are instructive, even if some of the more technical aspects of methodology remain a black box.

The shorter review is more comprehensive, though, and covers more background about the minimum wage, including possible explanations of smaller disemployment effects and distributional outcomes. It is also especially helpful for understanding one counter-argument often cited by the proponents of the minimum wage: the work of economists David Card and Alan Krueger, who supposedly disprove the theory that raising the minimum wage will always reduce employment. This is not the homerun proponents think it is. Neumark further cautions that case studies in general are not good guides, no matter how popular they may be among proponents.

So is there anything one might discern amidst all this noise? Robin Hanson, a professor of economics at George Mason University, summarizes:

To set the record straight, most all economists should agree that:
  1. A low enough minimum wage has no employment effect
  2. A high enough minimum wage induces a devastating fall
  3. The effect of a small rise is hard to see amid other effects
  4. Models (e.g., monopsony) sometimes allow positive effects
  5. Far more studies have found negative effects than positive
  6. Due to study errors, we always expect some contrary results
We should also agree that regarding a small (e.g., 10%) rise in the min wage in the U.S. today, plausible models do not allow for a large positive effect, but they do allow for a large negative effect, or for a near zero effect.
In other words, it is more likely that raising the minimum wage will hurt employment than help low-skilled workers. I'd also add that those workers who would enjoy a higher minimum wage are likely least in need, e.g., middle class teenagers.

If we all want to get on the GMU Econ Dept. bandwagon, we can take the advice of Prof. Hanson's colleague, Tyler Cowan:

I'm willing to admit, unabashedly, that I form my judgments on this matter by theory more than "raw evidence." When the evidence is unclear, or points in multiple directions, I favor the most plausible explanation.
That is, that the simple models are more likely to apply. Hanson and Cowan's chairman, Don Boudreaux elaborates on this point further. In the face of uncertainty and the likelihood of negative impacts, it is best to eschew the minimum wage.

This may be a reasonable conclusion for pundits, but politicians aren't motivated by reasoned arguments or bound by facts and logic. Take, for instance, the idiotic remark of Sen. Ted Kennedy, quoted in Neumark's small literature review: "The minimum wage was one of the first -- and is still one of the best -- anti-poverty programs we have." The literature does not support this statement, and Greg Mankiw might correctly diagnose the senior Senator from Massachusetts as, "either misinformed or engaging in demagoguery." He also explains why this is so, which I shall summarize in a mock dialogue:

Pollster: Are you concerned about the poor?
Average Voter: Oh yes, of course!
Pollster: Would you support raising the minimum wage?
Average Voter: We should have done it already.
Pollster: Would you support expanding the Earned Income Tax Credit?
Average Voter: Durrrr . . .
There are many ways the government can provide aid to the poor and create circumstances for them to work themselves out of poverty; the minimum wage should not be at the top of the list. But this is irrelevant to the Democrats because they, like most politicians, don't exist for the primary purpose of acting in the best interest of the country. They exist in order to get elected, and the minimum wage is a popular policy that they can enact with low political cost. Which is why we will, in all likelihood, see an increase in the minimum wage in the next 100 hours of Congressional frenzy.

Posted by Zach Wendling at January 4, 2007 06:04 AM

Comments

Great post Zach. I think the issue is that the equilibrium for wages is currently above the minimum wage, so raising it will likely have little effect right now. But that doesn't mean it's the right thing to do.

Posted by: Joshua Claybourn at January 4, 2007 10:04 AM | permalink

Of course the critical difference is that labor is not just "like any other commodity."

That is until you show me a pork belly that buys itself a house, a car, etc. Or that needs the (taxpayer-funded) social service net when it falls ill and cannot afford medical insurance.

I.e. labor also consumes and its consumption patterns are a function of how much we pay for it. Moreover there are resources that labor will consume whether or not we pay labor; then the only difference becomes whether or not labor itself pays for that consumption (out of its own pocket) or society pays for it, in the form of welfare assistance, etc.

Finally, I am not terribly fond of the prognostications of economic theorists with regard to minimum wage issues, particularly because economists are apt to become too enamored of the efficacy of their models while too ready to discount the experience of the real world. When you've built your whole academic career on the premise of supply and demand, you're not going to be exactly warm to the notion that there may be a commodity (labor) that doesn't respond to the premise.

I think a far better task would be to examine our historic experience with wage laws. The minimum wage in our own country was higher than it is now for most (if not all, I have to go check) of the 1950s and all of the 1960s (when it hit an all-time high of $8.50 an hour in today's dollars).

Have things become, economically, better for those at the bottom of the wage scale as the minimum wage dropped over the past three decades -- as the economist's models tell you "must" have happened?

Are those at the bottom of the wage scale in other western countries, all of which have significantly higher minimum wages than the US', worse off than those at the bottom of the wage scale here -- as a result of their country's $10-$11/hour minimum wages? Ireland, often held up as an emerging low-take, free-market utopia has a minimum wage of $11 an hour.

How do we square that with the fact that it seems to be doing better than the economists' models predict?

Posted by: Gregory Travis at January 4, 2007 11:30 AM | permalink

Great post.

In addition to the question of whether raising the minimum wage will raise unemployment, there are other negative side effects which are nearly certain to occur to some extent. One is that if you increase the price of labor, prices of goods will also increase, and that will erase some of the benefit of increased wages for low-income workers. Another is that increased cost of *legal* labor will lead to an increase in paying undocumented workers "under the table."

Posted by: Eric Seymour at January 4, 2007 11:52 AM | permalink

Then again, "increasing the price of labor," (raising the minimum wage) puts more money in the pockets of low-wage workers, allowing them to spend more on goods and services.

From what I gather, the overall consensus is decidedly not that "it is more likely that raising the minimum wage will hurt employment," but that modest increases in the minimum wage (as the Dems are proposing), have little to no impact on corporate bottom lines and/or rates of unemployment.

Meanwhile Gallup and CNN polls show public support to be extremely high (up in the 80% range). Remember the '06 midterms? The American public has made it's wishes known, and now the Dems are gonna act.

Posted by: JohnS at January 4, 2007 03:05 PM | permalink

Meanwhile Gallup and CNN polls show public support to be extremely high (up in the 80% range). That sentence refers to support for raising the minimum wage. Sorry.

Posted by: JohnS at January 4, 2007 03:11 PM | permalink

"...if you increase the price of labor, prices of goods will also increase, and that will erase some of the benefit of increased wages for low-income workers."

I still cannot accept this at face value. Give me an example of such a phenomenon. Use the example of the '96 federal hike raising good costs country-wide or city or state examples (like Chicago or Oregon 1998).

What goods specifically? Certainly none that the low-income laborer partakes in. Would Walmart raise the price of milk if they had to pay their workers more? They live in a vaccuum uninfluenced by the dairy farming market or pasturizing process? This is simply not true becasue Costco and other retailers already pay above minimum wage and Walmart would need to compete - thereby keeping their good prices low no matter their costs in labor. The argument is terribly foolish, IMHO.

Posted by: Brian at January 5, 2007 04:24 PM | permalink

Every dollar increase in the minimum wage will cause another million or more Mexicans to enter the country illegally. However, the irony of unintended consequences is always lost on those who favor this and other aspects of socialism.

Posted by: anymouse at January 13, 2007 09:08 PM | permalink

Post a comment




Remember Me?





(you may use HTML tags for style)

 
---- ADVERTISEMENTS ----



Rankings and Aggregators
Technocrati
Blogdom of God
Who Links Here

Site Meter