Pedestrians and pandemics

A couple of days ago, Adam Creighton had a piece in the Oz, downplaying the risks of the coronavirus pandemic, under the headline “Under 60, in good health? Crossing the road is more risky” Authors don’t choose headlines, but in this case, it’s an exact quote from the article.

There was no supporting analysis, so I decided to do the numbers myself. I looked at Sweden (quoted as a success by Creighton) which seems reasonably comparable to Australia, except that they haven’t gone for a lockdown. I started with some rough estimates on Twitter, and corrected them in response to comments. What follows is the final version.

In 2019, Australia had 172 pedestrian deaths a figure that has been stable for some years. As with the virus, over-60s are more at risk, accounting for 40 per cent of fatalities, compared to 15 per cent of the population. So, just over 100 pedestrians under 60 died last year in Australia. That’s about 2 per week.

Looking at Sweden, there have been 86 virus-related deaths of people under 60 so far, virtually all of them in the last three weeks. That’s about 28 per week, or 14 times the Australian rate

Now we need to adjust for the population difference. Sweden has about 10 million people and Australia about 25 million (ideally, we’d look at the under 60 population, but I’ll leave that adjustment for later). So, as of now, the virus risk to Swedes under 60 is approximately 35 times as great as the risk to Australian pedestrians under 60.

We don’t know how things will change in Sweden. Their strategy is one of “flattening the curve” while allowing the virus to spread slowly. Unless (as some have claimed) there are a huge number of undetected case, it will take a long time to reach herd immunity. Perhaps the current restrictions are sufficient to keep R below 1, but that seems unlikely to me. Even if it turns out that way, thousands more will die before the infection fizzles out.

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Environmental law after a year of catastrophe

The government is undertaking a review of one of our central pieces of environmental law, the Environmental Protection and Biodiversity Protection Act. They have a facility for quick comments of up to 300 words, as well as traditional submission (thanks to the Australian Conservation Foundation for the link). Here’s my 300 words

The catastrophes that have afflicted Australia and the rest of the world over the last year, including coral bleaching, unprecedented wildfires and the coronavirus pandemic point up the need for a radical reconsideration of existing approaches to environmental protection.

Far from achieving a sustainable balance between economic, social and environmental values, recent Australian policy has focused on protecting sectional interests and amplifying second-order issues such as the effect of environmental policy on energy costs.

The disasters of the past year show that the risks of widespread species extinction are far greater than has previously been assumed. As well as reflecting specific risks associated with exploitation of wild animal species for food and other uses, the Covid-19 pandemic has dramatically illustrated the folly of the presumption that, since previous potential disasters have not materialised or have been successfully, managed, the threat of environmental catastrophe can safely be ignored or deferred for the future.

In terms of the EPBC act, the key implications are:

  • a much stronger weight on preventing further loss of biodiversity
  • consideration of all effects of proposed developments, notably including Scope 3 emissions of coal, oil and gas projects

Flattening the curve vs (near) eradication

Here are some comments I’ve written in a rapid response to Brendan Murphy’s recent press conference. (I haven’t yet seen even the summary of the modelling that has apparently been released, just a picture of flattened curves.)

The idea of “flattening the curve” is fundamentally misleading, since it implies that most people will be infected until herd immunity is achieved, while the number of cases remains within the capacity of the health system. But assuming spare capacity of 2 beds per 1000 people, and 20 per cent of patients requiring treatment, we would need at least five years for herd immunity to be achieved. Optimal policy is to aim for near-complete eradication, then maintain sufficient distancing to ensure local outbreaks don’t spread. We will need quarantine for international arrivals until vaccination is general, or until other countries achieve near-complete eradication.


The main insight from economics is derived from option value concept. Better to adopt stringent measures early and relax if they turn out to be excessive than to move slowly and risk widespread community transmission.

Australia’s post-war recovery program provides clues as to how to get out of this

I’m running behind, but here’s my latest piece in the Conversation. Although the situation is very different from that of 194t, this, from the White Paper on Full Employment is as relevant as ever

Despite the need for more houses, food, equipment and every other type of product, before the war, not all those available for work were able to find employment or to feel a sense of security in their future.

On the average during the twenty years between 1919 and 1939 more than one tenth of the men and women desiring work were unemployed. In the worst period of the depression, well over 25% were left in unproductive idleness.

By contrast, during the war no financial or other obstacles have been allowed to prevent the need for extra production being satisfied to the limit of our resources.

Under emergency conditions, all sorts of things that were said to be impossible are suddenly found to be necessary, and the objections raised against them turn out to have been excuses for serving the interests of the well off. That’s the case for both Universal Basic Income and a Job Guarantee, both of which now exist in embryonic form.

The awful arithmetic of herd immunity

The ABC has an article quoting University of Melbourne epidemiologist Tony Blakely as saying (approvingly) that the object of the current “flattening the curve strategy is to smooth the path to herd immunity. Key quotes

You don’t go in too hard because you actually want the infection rate to pick up a bit and then hold,” he said.

“What they’re not saying is [that] ‘flatten the curve’ likely means [that] by the time this is over, 60 per cent of us will have been infected, to develop herd immunity,” he said.

The arithmetic here is pretty horrifying. 60 per cent of the population is 15 million so with a 1 per cent fatality rate, that would be 150 000 deaths. The number surviving but with long-term lung damage could easily be over 1 million.

It gets even worse. If herd immunity is supposed to be achieved over 12 months (by which time we are hoping for a vaccine) that would imply 40 000 new cases every single day. If even 10 per cent required hospitalization for several weeks, they would fill every bed in the country.

As for intensive care, we have a total of just over 2000 beds. Even with a hospitalization rate of 1 per cent, they’d be full in five days. And given that 1 per cent is the estimated fatality rate with treatment, that implies triage on a massive scale, which in turn would greatly increase the death rate.

This is simple arithmetic. If Blakely’s explanation of the government’s strategy is correct, it should be spelt out.

How to get to a UBI

Last year I published a book chapter arguing that the first step way to get to a Universal Basic Income was to expand the existing benefit system, increasing payments and removing conditionality (relevant extract over the fold).

This is often called a Guaranteed Minimum Income (GMI). I counterposed the GMI approach to the alternative of making a small payment to everyone in the community, and then trying to increase it over time. I suggested three initial steps

Assuming a ‘basic first’ approach is preferred, how might it be implemented? Three initial measures might be considered:

(i) increase unemployment benefits, at least to the poverty line;

(ii) replace the job search test for unemployment benefits with a ‘participation’ test;

(iii) fully integrate the tax and welfare systems

We are already on the way to taking these steps. Having floated the idea of a separate benefit for people who lose their jobs due to the virus crisis, the government has quickly abandoned it in favour of an increase in existing benefits. This is supposed to be temporary, and, in theory, at least, there has been no change in compliance efforts like work testing. But ‘temporary’ will turn out to be a long time, and compliance efforts are going to be impossible until things return to normal.

In a subsequent post, I”ll look at the alternative of a universal payment which might be increased from the levels in the stimulus package to an amount sufficient to live on.

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