Tuesday, 26 October 2021

Core business for a central bank

Inflation hit 2.2% in the most recent quarter. Not the annual rate - the rate for the quarter.

Arguably, Reserve Banks shouldn't be making statements about inflation outside of the scheduled monetary policy schedule. 

But it seemed a bit odd that the Bank put out a release on establishing the Māori Bankers Rōpū to coincide with the release of the inflation statistics. 

They came out within minutes of each other, as though the Bank were saying "Yes, the CPI numbers are out today, but here's what we're really interested in." 


New Zealand has an Emissions Trading Scheme that caps net emissions.

The ETS is nowhere mentioned in the report. 

The Executive Summary tells us that "Climate Change is part of our core business". 


It simultaneously tells us that the Reserve Bank has forgotten what its core business is. 

Its core business is keeping inflation between 1 and 3 percent over the medium term while maximising sustainable employment outcomes (which really means just maintaining stable inflation between 1 and 3 percent because the rest is out of the Bank's hands). 

If climate change is core Bank business, because it affects financial stability, is there *anything* that is not part of the Reserve Bank's remit? Housing policy would be the obvious starting point, but why stop there? Freshwater regulation may have financial stability implications. 

The question is whether the ECB, other central banks, and international institutions such as the IMF, BIS, and OECD should appoint themselves to take on climate policy, or other important social, environmental or political causes, without a clear mandate to do so from politically accountable leaders.

Moreover, the ECB and others are not just embarking on climate policy in general. They are embarking on the enforcement of one particular set of climate policies — policies to force banks and private companies to de-fund fossil fuel industries, even while alternatives are not available at scale, and to provide subsidized funding to an ill-defined set of “green” projects.

To be concrete, I quote from Executive Board Member Isabel Schnabel’s recent speech. I don’t mean to pick on her, but she expresses the climate agenda very well, and her speech bears the ECB imprimatur. She recommends
First, as prudential supervisor, we have an obligation to protect the safety and soundness of the banking sector. This includes making sure that banks properly assess the risks from carbon-intensive exposures…
Let me speak out loud the unclothed emperor fact: Climate change does not pose any financial risk, at the 1, 5 or even 10 year horizon at which one can conceivably assess the risk to bank assets.

“Risk” means variance, unforeseen events. We know exactly where the climate is going in the next 5 to 10 years. Hurricanes and floods, though influenced by climate change, are well modeled for the next 5 to 10 years. Advanced economies and financial systems are remarkably impervious to weather. Relative market demand for fossil vs. alternative energy is as easy or hard to forecast as anything else in the economy. Exxon bonds are factually safer, financially, than Tesla bonds, and easier to value. The main risk to fossil fuel companies is that regulators will destroy them, as the ECB proposes to do, a risk regulators themselves control. And political risk is a standard part of bond valuation.

That banks are risky because of exposure to carbon-emitting companies, that carbon-emitting company debt is financially risky because of unexpected changes in climate, in ways that conventional risk measures do not capture, that banks need to be regulated away from that exposure because of risk to the financial system is nonsense. (And if it were not nonsense, >regulating bank liabilities away from short term debt and towards more equity would be a more effective solution to the financial problem.)

...Now you may say, “climate is a crisis. Central banks must pitch in and help the cause. They should just tell banks to stop lending to the evil fossil fuel companies, and print money and hand it out to worthy green projects.”

But central banks are not allowed to do this, and for very good reasons. A central bank in a democracy is not an all-purpose do-good agency, with authority to subsidize what it decides to be worthy, de-fund what it dislikes, and to force banks and companies to do the same. A central bank, whose leaders do not regularly face voters, lives by an iron contract: freedom and independence so long as it stays within its limited and mandated powers.

The ECB in particular lives by a particularly delineated and limited mandate. For very good reasons the ECB was not set up to decide what industries or regions need subsidizing and which should be scaled back, accordingly to direct bank investment across Europe, to set the price of bonds, and and to print money to subsidize direct lending. These are intensely political acts. In a democracy only elected representatives can take or commission such intensely political activities. If I take out the words “green,” you, EU member states, and EU voters would properly react with shock and outrage at this proposal.

That’s why this movement goes through the convolutions of pretending that defunding fossil fuels and subsidizing green projects — however desirable — has something to do with systemic risk, which it patently does not.

That’s why one must pretend to diagnose “market failures” to justify buying bonds at too high prices. By what objective measure are green bonds “mispriced” and markets “failing?” Why only green bonds? The ECB does not scan all asset markets for “mispriced” securities to buy and sell after determining the “right” prices.
But the Bank makes it even more obvious that they have no clue what they are doing when they talk about the need to calculate and reduce the Bank's emissions profile. 

The only emissions from the Bank that are not covered by the ETS will be those coming from international travel, and maybe if they're getting bank notes shipped in from Canada. The latter will be trivial. Both could easily be offset if the Bank were so inclined. 

The only thing that happens if the Bank decides to take costly effort to reduce its emissions within the cap, efforts above and beyond what would be consistent with basic optimisation that accounts for an expected rising carbon price path, is that ETS credits are freed up for someone else to use. It doesn't make sense to spend $100 to avoid buying a carbon credit that costs $60. Someone else will just buy it instead. But it totally makes sense to spend up to that $60 to avoid buying the credit. 

The Bank calculates its revised carbon footprint at 10,014 tonnes. At $60/tonne, that's just over $600k in carbon charges. I wonder whether they spent $600,000 on reports calculating their carbon footprint. 

A future government that cares about having a Reserve Bank that knows its core business, and sticks to it, will have a bit of a job ahead of it.

The Frank Tay Scholarship

Frank was retiring as I joined the Economics Department at Canterbury in 2003. He'd still visit the Department for seminars and to catch up with colleagues. 

His article in the inaugural issue of NZ Economics Papers set the tone for the next several decades of excellence at Canterbury: professional training in economics requires at least an Honours qualification, with appropriate rigor all the way through. 

Alfred Guender had an excellent interview with Frank a few years back. He's since launched a memorial scholarship, to support post-graduate study. 

Details below, from the email Alfred sent through to me. 

A few months ago I sent a letter to friends, former colleagues, and former students of Frank Tay to inform them about a fund-raising effort to establish a scholarship in his name for a post-graduate student in economics at the University of Canterbury.

This is an opportune time to provide you with an update on the Tay Scholarship Fund. Thanks to donations received, the fund has grown to about NZ$24,000. A well-known economics graduate of the University of Canterbury, Prof. David Teece (University of California at Berkeley), has now indicated that he would match dollar for dollar the contributions to the Tay Scholarship fund, up to a limit of NZ$50,000.

Prof. Teece’s pledge provides all of us who are involved in this joint effort with an incentive to raise additional funds, Could I ask you to consider donating to the scholarship fund that bears Frank’s name? It would also be immensely helpful if you used your personal connections to former classmates at UC and other UC alumni to spread the word about Prof. Teece’s generous offer to match contributions. This may just provide the extra kick that is needed to establish a continuing scholarship that pays a higher stipend than what is currently possible.

Here are the details needed to make a contribution to the Tay Scholarship Fund, which is administered by UC Foundation. The BNZ account number is 020874 0015430 00.

Once again I thank you for your support of this initiative.

Update: Alfred says the UC Foundation now has a separate page for the fund.



Tuesday, 19 October 2021

Held to ransom by the unvaccinated

It is not a pleasant calculus.

New Zealand apparently really only has 186 fully staffed ICU beds. The rest is potential surge capacity with staff who've had only short bootcamp training. 

Vaccinated people can still catch Covid, but they're very unlikely to wind up in ICU. Alberta's population is a bit smaller than New Zealand's: 4.4m to our 5.1m. They put up all their vaccine outcome stats, from their very large ongoing outbreak.


Just look at the numbers here. Let's imagine everyone were fully vaccinated. 

First off, if that happened, the number of vaccinated people winding up in ICU would drop considerably, because fewer vaccinated people would catch Covid, because there would be fewer cases around transmitting it. 

But even if you held cases constant, you'd have ICU admission rates, even among the elderly, of around 10 per hundred thousand population over a 120-day window. If an ICU stay is 20 days, divide that 10 per hundred thousand by 6. And much lower rates for younger cohorts.

It isn't good. Inflating upwards to a population of 5.1 million, and assuming that the basic age distribution is similar between here and Alberta, it's 103 people in ICU over a 120-day period, or under 18 in ICU at the same time if a stay is 20 days. 18 is about 10% of fully staffed ICU capacity. A big outbreak, if everyone is fully vaccinated, doesn't wreck everything.

But the numbers on the unvaccinated side are truly awful. 

Remember that 76.7% of Alberta's 12+ population is fully vaccinated. They took up just under 9% of ICU spaces over the past 120 days. 

An additional 9.1% of Alberta's 12+ population is partially vaccinated. They took up just under 4% of ICU spaces. 

The completely unvaccinated 14.2% of the 12+ population account for 87% of the 12+ ICU demand over the 120-day period. 

If everyone were fully vaccinated, ICU demand would have been less than 12% of actual demand. More than 7 out of every 8 people who did wind up in ICU wouldn't have wound up needing ICU. The system wouldn't be busting. 

It isn't much different in Singapore. There, 15% of the population is unvaccinated and that 15% takes up half of the ICU spaces. A lot of that 15% will be kids too young to be vaccinated and unlikely to wind up in ICU if they do catch it: a tiny proportion of adult unvaccinated people are taking up half of the ICU capacity. 

Policy restricting everyone's liberty is being set, in part, to prevent the hospitals from being overwhelmed by the small proportion of people who do not want to be vaccinated. 

Is it any wonder that Auckland Mayor Phil Goff says:

"There has to be a price to be paid for not getting vaccinated and that may be access to hospitality areas, it will be access to events and it may be access to a whole lot of jobs that are public facing." Exceptions will have to be made for people who can't get vaccinated, he said.

If every person who could be vaccinated were vaccinated, the hospital system could hold up even in a big outbreak. And a big outbreak would be less likely. But if even 15% of the population remains unvaccinated, as in Alberta, that 15% impose so much cost on the health system that you get horrible outcomes that deny hospital services to everyone, vaccinated or unvaccinated, for all the other things that send people to hospital. 

Care has to be rationed, one way or another. Surge capacity is better than no surge capacity, but the short bootcamp training will not provide care that is up to the normal standard.

Every option is terrible. Delaying and deferring cancer and other surgeries to save ICU space for the unvaccinated Covid cases is horrible too. Imagine though a rule that, if triage decisions have to be made because of those terrible capacity issues, the willfully unvaccinated are the lowest priority. It sounds horrible. Every option is horrible. But doing it this way might encourage more people to be vaccinated, and in doing so massively reduce the problem that we'll be facing. 

What other option might you suggest that you think would be more fair in allocating those scarce spaces while also reducing the burden that ICU will be facing? Don't just tell me my option sucks. I know it sucks. Give me something that is feasible and sucks less. 

Monday, 18 October 2021

Morning roundup

 The morning's worthies:

Thursday, 14 October 2021

No accountability in Covid-land

Dileepa Fonseca has more on the latest installment of the Rako saga.

I know I've been going on about this since last December. 

But it really matters. 

If you can't get accurate test results quickly back to people in a pandemic, you're always going to be well behind the curve. Contact tracing is a mess of too-little capacity. Pinning down cases quickly makes that job easier. Fast results, and especially if collection is unobtrusive, reduces test hesitancy. If you have to self-isolate for days on waiting for a result, and getting a test is inconvenient and a bit painful, you'll be less likely to go do it for a sniffle than if you just have to drool in a spoon and get results same day (or overnight if it was later in the day). 

And the government has absolutely messed this up. 

Rako had offered to scale up its testing to help in the public health effort. The Ministry told them to piss off. 

Now the Ministry's threatening to expropriate Rako via requisitioned testing. 

This is fifty different kinds of stupid, but here's one of those flavors of awfulness. 

Suppose you had a testing company, and you knew you could make an investment that would 8-fold increase your capacity. 

Would you make that investment early, knowing it would wind up being needed for the public response once the Director General of Health pulled his head out of his arse, so you'd be ready to run?

How would that calculus change if the government threatened to just steal all your stuff?

If you make the investment early, increasing capacity, the government can just take it at the price the government sets, and you have to fight them in the courts about it.

If you know that they are giving themselves that power, well, it would be stupid to invest in more capacity. They can't steal what you don't have. But you might be able to work it into future negotiations, so you don't get wiped out for having made the investment before the bandit comes calling. So it's then better to wait. Even in a big outbreak where a pile of testing is needed. 

Someone on Twitter said that NZ right now is like the first people showing up at Fyre Festival. Would be nice if those who'd been warning about this lack of preparedness all year weren't being dragged along for the ride. 

Morning roundup

 Ok. It's down to one Chrome sheet. The worthies!

Sellotape IT systems and covid testing

I'd struggled to understand why the government would be blocking Rako's access to the Covid test tracking system. Surely, even if they hated Rako, they'd want to get results reported in for their own tracking purposes. 

Dileepa Fonseka has a potential explanation. The IT systems, like most government IT systems, are a disaster.

The Government is struggling to meet its existing border worker testing obligations, allegedly thanks to IT systems “held together by sellotape”.

There have been growing calls for border workers to be tested more frequently than once a week in response to the more infectious Delta strain of Covid-19. Yet a recent move to saliva testing has highlighted a significant IT issue standing in the way of more frequent testing.

...

The problem was exposed during the saliva testing roll-out, because workers were required to be tested twice a week.

The mish-mash of IT systems, and other delays within the testing regime, meant the deadline for a border worker’s next saliva test could pass before they were asked to take their next one.

One source close to the problem said the whole system was “held together by Sellotape, and it should have been replaced 15 years ago”.