The Labour party's talk of maxxing out the country's credit card is an obnoxious lie. But this does not mean the party is wrong to want a tight fiscal policy. There is a good case for it to do so, and it's got nothing to do with arbitrary fiscal rules or the Tories having "spent all the money."

Labour itself isn't going to make this argument, and why should it given that politics is about power and not persuasion? So I'll try.

It starts from the brute fact that unemployment is close to a 50-year low, at just 3.8% of the workforce. Granted there are another 1.9 million people (equivalent to over 5% of the workforce) out of the labour market who say they'd like a job, but many of these are unwell or have caring commitments and so are available only for lighter or more flexible work. The question "where will the money come from?" is a stupid one. But "where will the workers come from?" is certainly not.

Yes, there are some answers: immigration; some early retirees could be tempted back to work by better working conditions; and cutting NHS waiting lists would also get some back to work.

Nevertheless, the fact is that the pool of available labour is small. Yes, there are some GPs out of work, but fewer builders and skilled workers than there were a few years ago.

Which means that any significant rise in public spending and hence demand for labour is likely to bid up wages. The Bank of England will see that as potentially inflationary and would raise interest rates. This wouldn't wholly be disastrous: higher rates would help bring down house prices and reduce some of the more egregiously socially useless financial activities. But it does mean you could kiss goodbye to big housebuilding, as this is the most interest-sensitive sector of the economy.

Yes, Labour could prevent this by raising the inflation target. But nobody in politics is arguing for this. And whilst there's a case for doing so, it doesn't solve the physical constraint, of there being just not enough doctors, housebuilders or skilled workers in the green economy.

You might object that there's an obvious solution to all this: to raise taxes. The need to do this is not to raise money: governments can do that anyway by printing or borrowing. Instead, it is to free up real resources. Higher taxes would cut consumer spending thereby depressing demand for labour in retailing and hospitality, thus releasing workers to go into social care, construction, decarbonizing and the other things we want to do.

There are, however, big problems with this.

One is political. There's been no preparing of the ideological ground - no
campaign to say that taxes are the "price we pay for a civilized society" or even that they are an economic necessity if we're to have good public services. From this background, tax rises would look like Labour going back on its word, being duplicitous.

And even if taxes were to rise, there'd still be issues.

One is that the mega-rich don't spend much and so higher taxes on them would not free up many real resources. Justice requires that we tax the mega-rich more and help the worst-off. But this does little to achieve the economic aim of shifting resources towards the public sector and away from the private. That requires tax rises upon those who will cut their spending as a result. If we want better public services, we must pay for them ourselves.

But there are problems with this, even aside from the unpopularity.

One is that higher taxes will cut jobs in retail and hospitality but do little to destroy the many socially unproductive but often well-paid jobs: the bullshit jobs created by managers who expand their empire (or promote an image of "wokeness"!) at the expense of shareholders; the lawyers and tax advisors who exploit an overly complicated tax system; bureaucrats who administer a repressive benefits system; fund managers who rip off investors; and producers of various forms of pollution, be they carbon emissions, financial risk which taxpayers pay for; or the intellectual pollution of the media. To destroy jobs such as these requires microeconomic policies which nobody is even thinking about.

And then there's the fact that, quite simply, reallocating labour takes time.

My chart shows this by plotting a measure of labour reallocation. To see how this works, imagine an economy of five workers in each of two sectors. If employment in both sectors grows at the same rate then net labour reallocation is zero; for any worker shifting from one sector to the other another must go in the opposite direction. If, however, the sectors grow at different rates, labour is being reallocated. If employment in one sector falls from five to four and that in another grows from five to six, net reallocation is one. My chart measures this process across 16 main sectors, with net reallocation expressed as a percentage of the labour force.

This shows that reallocation is typically small - usually not much more than 1% of total employment, or less than 400,000 people per year.

The economy, then, is sticky and slow to change. Most people prefer to stay in jobs they know; employers prefer relevant experience; it takes time for people to discover opportunities in different industries; to decide to make a radical career change; and to retrain. It is only times of distress that force many people into such change; note that the highest reallocation rates were in bad times such as the 2009 recession and 2020 Covid outbreak.

We can't therefore merely flick a switch and move tens of thousands of workers quickly from retailing to healthcare, construction or the green economy. The world just doesn't work like that. Change has to be gradual. Reeves is right to say "we're not going to be able to turn things around straight away."

There is, therefore, a case for Labour having a tight fiscal policy.

You might object that all this seems to contradict a great point made years ago by Dan Davies: good ideas don't need lots of lies told about them.

I think there's an answer here. Dan's point applies when the audience is intelligent and informed. Which is not the audience for Labour's drivel about the credit card being maxxed out. When Jones, Reeves and Starmer use such language they are speaking not to economists but to political reporters who are institutionally stupid. The arguments they use to other audiences would, I would hope, be a little like the one I've made.

And it is emphatically not a right-wing argument. Macroeconomic policy must not be a matter of ideology but of empirical fact: you should run a loose policy when there's spare capacity in the economy and a tight one when there isn't. Truss's unforgivable error was to not appreciate this.

What's more, a tight fiscal policy is entirely compatible with radical economic policies elsewhere: land value taxes, a basic income, a maximum wage, planning reform, economic democracy, proper regulation of monopolies and so on. And don't think such measures don't address the pressing need to improve public services. They do: anything that gets the economy growing will boost tax revenues.

One of the great failings of social democracy has been think of economic policy too much in terms of public spending and not enough about other policies to foster equality and efficiency. The big failing of Starmer's Labour is not that it is offering fiscal austerity, but that it is offering nothing else.