Over at the Adam Smith Institute, Sam Bowman is discussing the minimum wage again. However, as is always the case in minimum wage arguments, supporters of a legal price floor are quick to point out that the introduction of the minimum wage in the UK was not accompanied by rising unemployment, as economic theory would suggest. What explains the labour market's seeming resilience in the face of what should be a very bad policy?
A quick summary of what theory says should happen might help. In theory, the market price is the price that ‘clears the market’: everybody who would be willing to sell at that price finds a buyer and everyone who would buy at that price can do so. At a price higher than the market price, more sellers would enter the market, while more buyers would be deterred, so ‘the market would not clear’: there would be an excess of supply relative to demand. In labour market terms, that means that there would be more would be more workers and fewer jobs, which means unemployment.
Looking at it from a different perspective, economic theory tells us that wages should equal the marginal product of the worker. If I can produce £6/hour worth of value to your company, it is worth you paying me £5.95/hour to work for you, but not £6.05/hour. Thus, a minimum wage set higher than my marginal productivity does not increase my wages; it just renders me unemployable.
So how come millions of workers with low productivity did not swell the ranks of the unemployed as a result of introducing the minimum wage? There are three possible reasons that come to mind.
The first is the stickiness of labour markets that results from other government intervention. In the short-term, it may be cheaper to increase a person's wages to a level that is higher than their productivity than to make them redundant. This is particularly true if they have been in the same job for a long time: redundancy payments would be high, while they may be expected to retire or move on soon. So in the short term the impact may be softened.
Secondly, if the minimum price floor is set below the market price, it will not affect supply or demand (or, for that matter, wages!). If, when it was introduced, very few workers in the UK had a marginal productivity of below £3.52/hour, it would not have had a discernable impact: it would, in fact, have been nothing more than a hollow gesture intended to burnish the socialist credentials of the New Labour government (imagine!).
Thirdly, as welfare economics teaches us, what matters to a person considering changing their employment is the next best alternative. In the case of the UK, the real minimum wage is not necessarily the legal minimum, but the amount that one would receive in benefits if one were not working. Housing Benefit alone can be worth around £5 or £6 an hour. Thus, for the poorest and least-skilled in our society, working only ceases to be the next best alternative once the wage they can command rises above the level of out-of-work benefits.
It is not beyond imagination that the Labour government knew this, and deliberately introduced the minimum wage at a low level as a Trojan horse, enabling them to prove that it caused no harm before ramping it up to levels that would impact upon employment. One needs to bear in mind that the Labour government helped create a spectacular economic bubble during their time in government. With the amount of deficit spending and monetary expansion they indulged in, the real question should be why we didn't have full employment.
Of course, all booms turn to bust. There are now 2.5 million unemployed in the UK, yet the government still refuses to abolish the minimum wage or even to consider less controversial options such scrapping it for under 25s or freezing the rate. Don't expect those unemployment figures to fall quickly.

There are so many errors in this blog-post that it is difficult to know where to start, so let's start here:
(i) "Looking at it from a different perspective, economic theory tells us that wages should equal the marginal product of the worker."
Is this always true? NO! This is only ever true if there is full employment, or for employment sectors where high skills are in short supply. In which case employers will indeed bid against each other for the available talent, so pushing up the price until the point is reached where the cost of labour exceeds the marginal product of the worker. It certainly doesn't apply to the low paid, many of whom do work for which the marginal product greatly exceeds their wage. Their wages are bid down because the supply of low skilled labour always exceeds demand unless there is full employment. Low pay then falls to subsistence levels (as predicted by the Iron Law of Wages), or below.
(ii) "If, when it was introduced, very few workers in the UK had a marginal productivity of below £3.52/hour, it would not have had a discernable impact..."
Except that when it was introduced many of the advertised jobs were paying as little as £2.50, so how does that fit into your theory? In fact a number of academic papers and reports have concluded that about 6% of workers (i.e. two million) saw their pay rise when the minimum wage was introduced.
(iii) "So how come millions of workers with low productivity did not swell the ranks of the unemployed as a result of introducing the minimum wage? There are three possible reasons that come to mind."
No, there is a fourth. Many of these businesses were able to pass their costs on to customers, or absorb them out of their excessive profits. This is because the wages of the low paid are often significantly less than the marginal product of their work as outlined in point (i). So many employers had inflated profits from which they were able to find some of the additional money. Moreover, most of these jobs are in the service sector, and so they are also unaffected by international competition. The net result is that service costs often rise as customers are forced to pay the real economic cost of the services they require, rather than have such services partially subsidised by the state via the benefits system. This adds to the amount of redistribution in society as the rich are forced to pay the real price for the services they require (rather than having them subsidised by the state) and their excess wealth is transferred to the poor.
(iv) "With the amount of deficit spending and monetary expansion they indulged in, the real question should be why we didn't have full employment."
No the real question is: how is it that some people at the IEA and elsewhere seem to have failed to notice that unemployment in the five years before 2007 was the lowest since the 1970s even though the minimum wage had already been introduced?
(v) "One needs to bear in mind that the Labour government helped create a spectacular economic bubble during their time in government. With the amount of deficit spending and monetary expansion they indulged in..."
This is just a reiteration of your erroneous comment of three months ago where you stated: The recession was the result of bad economic policy by the Labour government: notably, running a deficit since 2000 while stoking a credit crisis. (I assume it is the same Tom Papworth, yes?) Firstly the deficit had nothing to do with the recession. A government with both total debt and income equal to 40% of GDP (as was the case prior to 2008) can sustainably run a 2% annual deficit when inflation is at 2.5% and growth is at a similar level (as was also the case). Under those circumstances the ratio of debt to GDP and/or government income will remain unchanged. Nor can a small budget deficit cause a major recession. If it did we would always be in recession, and once in we would never get out. Moreover, as J.K. Galbraith and others have noted, recessions are caused in part by inequality. As for the credit expansion, that was and is a Tory policy.
It was a Tory government that abolished reserve requirements in 1980.
It was a Tory government that allowed retail banks to buy investment banks and brokerages after Big Bang.
It was a Tory government that deregulated the mortgage market and allowed banks to enter the market, thereby providing cheap capital for housing and inflating the housing market prior to 1990, and again afterwards.
It was a Tory government that allowed building societies to demutualise.
It was a Tory government that sold off social housing and failed to replace it, thereby stoking the housing market further.
It was a Tory government that deregulated the credit card industry thereby creating a massive consumer credit bubble.
It was a Tory government that oversaw the largest rise in inequality in this country since WWII.
If the Labour government is responsible for anything, it is in not reversing these policies, policies that many at the IEA and the Adam Smith Institute (ASI) I suspect supported and possibly even proposed.
Perhaps the greatest error you make, though Tom, is at the start of your analysis. You cannot apply the principles of classical economics and market clearing to the field of employment without disastrous consequences. People are not like commodities. They cannot be brought into existence in an instant and removed from the supply chain when they are too numerous. Human capital cannot be simply mothballed or put into cold storage when it is not needed in the way that factories or production lines can. Nor can human capital be reallocated as easily as goods or finance. A dentist cannot become a footballer at will, and a footballer cannot become a dentist. Each person has his own natural talents and there is a finite limit to the extent to which education and retraining can expand his capabilities.
Ultimately, though, the question of the minimum wage is one of morality and human dignity. To claim therefore that the lowest paid and poorest are actually overpaid is something that most civilised people should consider distasteful. But if the IEA and ASI truly do desire the abolition of both the minimum wage and the benefits system, then I suppose the question both need to answer is this: how low would you like to see the wages and living standards of the poor fall?
Reply to Philip (on Sat, 04/06/2011 - 18:55)
I have never claimed that Tom was a Tory. I was merely pointing out which party should be held most culpable for the current economic mess.
"why is it than when people do not agree with Cantab83's reasoning they are in error..."
So are you suggesting that if I can find flaws in IEA policy proposals then I shouldn't point them out? Or am I in error? In which case, where exactly are the flaws in my arguments? I'd love to know.
Reply to Whig (on Wed, 08/06/2011 - 17:03)
Quote 1: "...the point you don't seem to recognise is that it is the minimum wage which drives down the living standards of the poorest!"
Quote 2: " Of course, it is not just the 'rich' who use buy goods and services. Even the poorest in society must buy goods and services so increasing the price they pay via wage floors imposes the penalty of increased costs, which must also represent a greater portion of their lower incomes, with no means of discrimination. How do you figure that to be 'moral'???"
So how exactly does setting a minimum wage above what the lowest paid are currently earning make them poorer? What is the argument here? That the minimum wage makes the poor poorer by increasing their costs faster than their earnings? Or that it increases inequality? Or both? The reality is that it does neither (provided the rise is not too steep or the level insanely high).
The poor may spend disproportionately more on the very services that they themselves provide, although that is highly debatable. After all most of the relevant minimum wage jobs are in sectors like hotels, catering, leisure, child care, and retail that are mainly funded by people with high levels of disposable income. Either way, it is unimportant because the important mathematical measure is not the RATIO of their earnings to the costs that they incur from purchasing the very services that they provide, but the DIFFERENCE. It is their net income that counts, and that clearly increases as the minimum wage increases. For the top earners the difference goes down. So inequality also reduces in addition to the poor becoming richer in real terms.
Reply #2 to Whig (on Wed, 08/06/2011 - 17:03).
"The means to avoid having 'such servies subsidised by the state via the benefits system' is, of course, to abolish the benefits system, although frankly I'm at a loss to understand what you're talking about here - how is the state subsidising the services the 'rich' (i.e. everyone who pays tax) use? And given the deadweight loss of such a subsidy via the tax system, most taxpayers are certainly paying more in tax than they receive in beneficial subsidy."
If a job is economically viable then it should be capable of paying a wage that is sufficient to support the worker employed in that job (a living wage). If there is no minimum wage, or that minimum wage is set too low, then wages of the unskilled will inevitably fall below subsistence level with the difference being met by the State via the benefits system. Without that subsidy those jobs would not be filled and the firm would go out of business. That firm therefore only exists because its workers are supported at the tax-payers' expense. The jobs it provides are therefore uneconomic. Now how is that any different from the way the State used to subsidise the operations of uneconomic nationalised industries? At least in the case of nationalised industries there weren't any rentier shareholders profiteering at the expense of the tax-payer.
Moreover, allowing one firm to operate at wage levels below the economic minimum merely ends up driving down the wages in competitor firms that had previously been operating above that threshold. It ends up in a race to the bottom that increases inequality (wages go down, profits go up), reduces overall demand and GDP, and gradually turns the country into a low-wage economy with ever lower levels of consumer demand, particularly from those with earnings below the mean, that then impact on future profits, investment and growth. The economy performs best if the number of middle-class consumers is increased, not decreased.
There are only two solutions to this hypocritical situation of the State indirectly supporting uneconomic jobs. Either you have a minimum wage that is consistent with the benefits system, or you abolish the benefits system. The former requires a minimum wage that is set at a level that makes work pay, whilst the latter leads to mass starvation amongst the unemployed who have no means of support. The moral choice should therefore be obvious.
Reply to Alan (on Tue, 14/06/2011 - 14:07)
(i) "Without the distortions of minimum pay rates and welfare payments people would not be able to live on a wage below their subsitence (i.e. survival) needs. That much is a truism. It could therefore never be in the interests of an employer to offer such a wage; his employees would all die."
And what about those who aren't employed? They are surplus to requirements. What happens to them? And what about workers who are employed on short-term contracts? How is that consistent with employers looking after the long-term interests of their employees?
Your argument seems to be a standard counter-argument to the Iron Law of Wages. It may also explain why a number of 19th century industrialists did indeed invest in their workers through higher wages and decent housing (although some of this was driven by religious conviction, not economics). At the same time, though, many millions in the Victorian era were unemployed, unsupported by the State, and living in abject poverty. Some may want to see this country return to that state of affairs - I don't! Therefore we need a welfare state, irrespective of the level of "distortion" you say that it brings. If that "distortion" arises by keeping people alive who would otherwise have died, how is that bad? A minimum wage is then just part of the overall package of "distortion".
Moreover, I regard your argument that some people may prefer (for whatever reasons) a job paying below an arbitrary "subsistence" level to one paying that level or slightly above as very weak for this reason. Removing the minimum wage may increase job opportunities for a few, but it would lower the wages of many more. The net benefit would be massively negative. A minimum wage is not perfect, and will never deliver the optimum outcome for everyone, but it is much better than the alternative.
(ii) "However, even this is a compositional fallacy because different employers would be pursuing different agendas and would probably be bidding up wage rates through an attempt to attract good workers away from such businesses (which probably wouldn't be hard). One of the easiest ways to put a competitor out of business is surely just to deny them a workforce."
As I pointed out previously, that explains why some people are paid more than others. It doesn't explain why many exist, or would exist, at subsistence levels or below. It is about supply and demand. High skills are in short supply, low skills are not. At the bottom end of the employment scale bidding up wages will never put a competitor out of business by denying them a workforce because there is no shortage of labour, and the skills and training are low.
(iii) "Even if we could accept a great degree of what you are saying; that there would be businesses "exploiting" their employees to the degree you suggest, don't you think that there would be a consumer reaction at some point?"
On a scale large enough to make those employers change their business models? No! For a start, any firm that did try and change would be undercut and put out of business by one that didn't. Your argument depends on collective action by the entire market simultaneously. How likely is that?
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