The political economy of networks

I’ve had this post in mind for quite a while, and never got in finished to my satisfaction, but it’s been stimulated to a significant extent by reading Clay Shirky, so I thought I’d pop it up now, somewhat half-baked, since Clay is currently visiting Crooked Timber, where I’ve crossposted this.

The biggest single question in political economy is whether and to what extent we can achieve social equality without sacrificing other goods like liberty and prosperity. Neoclassical economics (a project in which I’m a participant) begins with models which imply that, with competitive markets, all factors of production will earn their marginal product. This in turn implies that any intervention that shifts wages or returns to capital away from their marginal product must imply a loss in aggregate income (there are some complex technical issues here which I’ll skip over)

There are all sorts of problems with simple-minded applications of this result. Still, in an economy that fits the standard model of lots of competing firms, all operating in a region where constant returns to scale apply, the standard neoclassical analysis has considerable force. But the growing part of the economy centred on the Internet doesn’t fit this model at all. The Internet is a network and the economies of networks are different, in critical ways, from those of the standard neoclassical model.
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The unsustainable has run its course

Unlike national central banks, the Bank for International Settlements doesn’t have to worry too much about the effect of its statements on business and consumer confidence or on the possibility of political flak. Hence, it has usually tended to give a less rosy view of the economic outlook than other official and quasi-official institutions. The latest assessment is particularly gloomy .

The full annual report has the cheery title “The unsustainable has run its course and policymakers face the difficult task of damage control” (Overview here).

The money quote:

Perhaps the principal conclusion to be drawn from today’s policy challenges is that it would have been better to avoid the build-up of credit excesses in the first place. In future, this could be done through the establishment of a new macrofinancial stability framework, which would call for both monetary and macroprudential policies to “lean against the wind” of the credit cycle

It’s hard to disagree with this, but equally hard to imagine such a framework (reminiscent of the “new global financial architecture” proposed in the late 90s) being introduced without the stimulus of a truly dire financial crisis.

Farewell to the Bullets

For quite a few years now, I’ve been following both the fortunes of the Brisbane Bullets and those of an economic system centred on high levels of debt, validated by capital gains. These two interests have collided in an unfortunate fashion with the announcement that the Bullets license has been returned to the National Basketball League. This has been more-or-less inevitable since the owner, Eddy Groves, ran into financial difficulties arising from the impact of the credit crisis on his childcare group, ABC Learning.

I’ll doubtless have more to say on the credit crisis, and perhaps on whether private ownership of sporting teams is a sustainable model for Australia. But for now I’d just like to say thanks to the players and staff of the Bullets for providing me and my family with lots of fun and excitement over the years I’ve lived here in Brisbane, particularly in their last championship season 2006-07.

The nuclear option

Unsurprisingly, evidence that the Rudd government is serious about emissions trading has produced a new round of calls for the development of nuclear power in Australia. There is certainly a case to be made that an expansion of nuclear power should be part of the global response to climate change. But the latest chatter isn’t part of a serious response to the problem of climate change; rather it’s an attempt to duck the issues raised by an emissions trading scheme.

The crucial points to bear in mind are these

* Nuclear power will never be viable in Australia without a high price on carbon and a clear commitment that the price is going to remain high. So, there is no point in raising the nuclear option as a cover for opposing emissions trading

* There is no way that Australia is going to lead the rest of the developed world (in particular the US, but the same points apply to most of Europe and Japan) on this. The US is attempting to restart its nuclear industry on existing brownfield sites. This process started with the passage of new legislation in 2002 and, if all goes well, construction on the first plants might begin in 2010 and (very optimistically) be completed by 2014. Given our lack of any regulatory capacity, construction and management expertise and so on, we won’t even be able to get started before the US industry shows the way on new greenfield sites and produces a significant number of operating plants, say by 2020. With a fast paced program, we might get plants on line by 2030

* It follows that whether or not the Rudd government (or whoever is in government for the next 5 to 10 years) changes its policy on nuclear power will make no difference to anything of substance

Back on air

My hosting service had a major hard drive failure which has kept me off air for several days. Of course that meant I couldn’t post an explanation, but I belatedly realised (thanks to a reader getting in contact there) that I could have put up an announcement on my Facebook page. Anyway I’m back on air and I’ll make up for some of the lost time with some quick points

* Joshua Gans is selling the first copy of his book Parentonomics here on eBay to raise money for a cure for MS. Go and bid – it should be a fun read

* Ken Henry is using his annual leave to help save the endangered hairy-nosed wombat, but I’m expected a new round of extinctions among the endangered species of Opposition leaders.

* After equivocating for months, the Rudd government seems finally to have bitten the bullet, saying, correctly “We’ll make petrol dearer“. Meanwhile, looking at the international news, I’ve been struck with the failure of demagogic attempts like the Liberals’ proposed cut in fuel excise. The McCain-Clinton gas tax holiday seems to have sunk without trace, the EU has held the line against protests, and lots of countries (Indonesia and China among others) are cutting existing subsidies as the futility of a cheap energy policy becomes evident

* The news from the credit crisis in the US has been more alarming than ever. The collapse of the (largely bogus) bond insurance business of firms like MBIA and Ambac has generated a new crisis in markets for associated credit default derivatives. And it turns out the the infusions of equity received by most banks late last year, which ended the first round of the credit crunch had conditions attached which make any further resort to this rescue method highly appealing (essentially, those who made the first injection have to get free shares to offset any subsequent dilution). All of this is mindnumbingly complex. But whereas the inference from complexity used to be “this is much too hard to understand, and the experts have it all under control” it’s now more like “who knows where the next time bomb is hidden>”.

The power of persuasion

That’s the headline for my article in today’s Fin, which follows:

After a messy and unedifying process, the Iemma government has finally reached an agreement with the Opposition to proceed with the privatisation of the New South Wales electricity industry. The price of the deal has been acceptance of the Opposition demand for an inquiry by the Auditor-General, Peter Achterstraat.

In most cases, inquiries into policies on which the government is already determined are little more than rubber-stamps. Whatever the desired result, a suitably distinguished former judge or some other eminent person, with appropriately written terms of reference, can usually be relied on to deliver it.

But Auditors-General are a sturdy breed, among the few groups of public officials who have offered significant resistance to the politicisation of the public service over recent decades.

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Bond insurance and regulatory arbitrage

Readers familiar with the Macquarie Group are likely to have several reactions to the news that Macquarie is considering entering the US municipal bond insurance market. First, if Macquarie is interested, there is almost certainly money to be made. Second, much of the gain is likely to be at the expense of the governments concerned, and will involve some combination of regulatory arbitrage and financial engineering. Finally, given its high-risk business model ( Babcock & Brown, the other leading exemplar of this model is trying to stave off the banks as you read this) isn’t it a bit odd for Macquarie to be guaranteeing the debt of low-risk entities like local governments?

[update: Pressure on ratings agencies to treat public and corporate bonds on the same basis is having an effect]

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US Recession: Implications for Australia

The news that the unemployment rate in the United States has risen from 5.0 to 5.5 per cent makes it clear that the US economy is now in recession, even allowing for all the usual qualifications about one months’ data, possible revisions and so on. Unemployment tends to be a lagging indicator, and the housing downturn still has a long way to go before it turns around. The long-overdue downgrading of the main mortgage insurers, MBIA and Ambac, and of course the further depreciation of the US dollar and increase in the price of oil add to the picture. Not surprisingly, this produced a big drop on Wall Street last Friday. What are the implications for Australia.

The most direct, I think, is for the Reserve Bank. It’s now virtually impossible for the US Fed to raise interest rates, so the prospects for US inflation staying low depend on the assumption that high prices for food and oil, and increasingly for US imports, won’t be reflected in prices more generally or in wages. The Australian economy is sufficiently fragile that it seems sensible to take a similar view here and not increase interest rates further (of course, that still leaves Australia with much higher interest rates, and lower inflation, than the US).

The second is for the sustainability of the economic model pursued by the whole English-speaking world for the last couple of decades with large trade and current account deficits and low to zero rates of household savings in traditional terms, offset by capital gains on housing and equity investments. Australia has followed this model even more enthusiastically than the US in some respects, and so far has not suffered any serious consequences. But a sudden loss of confidence in the US could easily spread here. I’d be a lot happier if our current account deficit was declining as a result of the mining boom. Instead, it’s now at record levels.

Carbon taxes and fuel prices

This is an appeal to my many numerate and well-informed readers to check my calculations. I’ve been asked to do a quick estimate of the implications of including motor transport (particularly petrol) in a carbon tax/emissions trading scheme. Since it’s easier to model, I’ve decided to look at carbon taxes at rates of $20. $50 and $100 per ton of CO2.

Since a litre of petrol produces 2.3 kg of CO2 when burned, the taxes correspond to 4.6, 11.5 and 23.0 cents/litre, and I’m going to assume that the addition of margins yields final increases of 5, 12.5 and 25 cents/litre.

Given annual consumption of around 30 billion litres (this is petrol + diesel, but I’m going to treat it all as petrol), the revenue generated is $1.5, $3.75 and $7.5 billion, ignoring demand responses (of course, we want demand responses, but I’ll leave this for alter I think).

Coming to a very rough assessment of compensation, if the proceeds were divided equally amoung households in the bottom half of the income distribution (about 5 million of them), the payment would be around $300, $750 and $1500 respectively.

If anyone can see any big holes in my calculations, I’d be very grateful to have them pointed out. More generally, any constructive comments appreciated.