## Saturday, September 23, 2017

### A Bitcoin Bet

I have yet to hear reasoned arguments about why Bitcoin should be considered a currency. Nor have the perceived advantages over existing currencies and their settlement systems ever really been properly elucidated.

Somehow that does not stop people believing that Bitcoin is a currency. In many cases, people argue that it is even better than existing national currencies without even knowing about the security and settlement features of the current payment systems used across the world. Perhaps this is why the benefits of crypto-currencies are never made clear, and all you get is hand-waving about governments debasing their currency, being anonymous, or some such thing.

Bitcoin is a financial roulette wheel, spinning on ideology, and attracting suckers with every turn. It has none of the core features of a currency, which means it will never be used as one.

Professor Jason Potts, a founder of Crypto Economics, seems for some reason to think otherwise. On Facebook, I suggested to a mutual friend that I was willing to bet that Bitcoin will never be used as a currency, by which I mean as the unit in which goods and services are priced and as the medium for settling payments.

I said:
I have yet to hear why Bitcoin or any other cryptocurrency functions better than current monetary and payment systems, except nonsense anarchist handwaving about being 'distributed', and something about 'trust', which is no longer even the case with a small set of Chinese organisations essentially taking over Bitcoin mining, and the trust problem being totally misinterpreted...
Jason decided that a bet was interesting and would take me up on it if I decided terms. After a little back and forth the following terms were agreed to.
I [Cameron] will lose the bet if, as at 19 September 2022, Bitcoin (meaning Bitcoin or any other cryptocurrency not backed by a national banking institution) meets all of the following criteria.
1. Bitcoin can be used to buy groceries in a physical store in my suburb where prices are posted in Bitcoin and not simply converted from AUD pricing periodically.

2. More than three listed companies in Australia pay salaries in Bitcoin (or have an option to), and advertise their salary rates in Bitcoin (i.e. you do not just get paid AUD converted at the going exchange rate each time).

3. At least one OECD country accepts Bitcoin for income tax payments and will calculate tax obligations in Bitcoin (not convert from the local currency to Bitcoin).
4. Jason Potts is being paid in Bitcoin at a fixed Bitcoin price (not simply converting an AUD salary to Bitcoin).
Loser pays the winner AUD 100 at an event the loser organises in their city that involves lively discussions, debates, and socialising.
I see a huge number of problems with Bitcoin and want to outline some of them here in the context of this bet. Some of the main ones are:

Money-ness
It is not clear what the advantage of a blockchain tracking all transactions is. My view is that this comes from a fundamental misunderstanding of money. Money is a not an object, or token. It is not a gold coin. It is a common accounting system.

This is why we price in the national currency. There is nothing stopping any company setting their prices in all manner of things — gold, iron, US dollars, or other units. But we don’t. Because we want to integrate into the common system of accounting that our suppliers and customers use, and one where it makes financial sense to can keep relatively stable and predictable pricing, in addition to easy payment.

Every online store that I have found that accepts Bitcoins does not price in Bitcoins. It prices in the national currency, and allows you to pay using Bitcoin. An Australian service that allows you to ‘get paid in Bitcoin’ prefers to be paid themselves in Aussie Dollars for that service.

Indeed, the fundamental misunderstanding of money is evident at some of these retailers. For example, when Mission Market announced they would start accepting Bitcoin, they noted the following:
Unlike credit cards, Bitcoin payments are not sent through a labyrinthine network of banks and processors, meaning that transactions can be completed faster and more cheaply than conventional electronic transactions. Bitcoin retains many of the useful features of cash while offering more security. And because Bitcoin has a finite supply and is not issued by a central bank such as the Federal Reserve, its purchasing power cannot be eroded through excessive money creation. [my emphasis]
Here again, we get the ‘money as object’ myth rearing its head. Payments are not ‘sent’. They are accounted for. The ‘finite supply’ again reinforces this idea.

Now, this same myth is true in much of economics. The quantity theory of money talks about the supply of money very much as a token. This is why the theory fails routinely. Properly considering the nature of money, the theory would not apply to some quantity stock measure, but would instead apply to the rate of expansion of current money accounts used for transactions of newly-produced real goods and services. But that is a fight for another day.

The last main problem for Bitcoin in terms 'money-ness' is that if its value keeps rising no one will want to use it for transactions when an alternative currency that isn't rising in value is available. That's just Gresham's Law. And of course, if the value doesn't keep rising, it is not clear why anyone would want Bitcoin as a means of payment, and its value will likely converge to zero.

Governments
Since money is a common accounting system, those who make the rules of money — government, central banks, and private banks — can exercise a great deal of power via this system. As we see now in China, those holding this power do not want it threatened. If a private crypto-currency did evolve into a more widely accepted alternative monetary system, it would be immediately crushed politically.

Trust
One of the arguments in favour of Bitcoin is that you don’t need to trust a banking system to settle a payment, nor identify yourself. Instead, you trust a different system. Surely in normal commercial arrangements, the very choice to use Bitcoin rather than established currencies would be a signal of a lack of trust on the part of a transaction partner.

Imagine you are a new retailer in a market and approach a wholesaler about purchasing a variety of goods. You ask to pay in Bitcoin. What would their response be? Would it increase their trust that you will pay your bills, or decrease it?

Perhaps this is why Bitcoin’s main commercial use has been in black markets.

And indeed, the main advantages of using Bitcoin — the anonymity of your transaction partner in digital payments — seem to be the very reasons that governments would want to crack down, particularly if it is widely used to avoid tax.

Technical limits
Around $180 billion worth of non-cash payments are settled each day in Australia. This excludes a great number of within-bank settlements between account holders, and all cash payments in the economy. Since cash payments are about 30% of all payments, and accounting for some within-bank settlements, the total daily payments could be closer to$300 billion.

I have no idea how Bitcoin or any other crypto-currency could handle that sort of settlement need in a timely manner. That’s over \$200 million per minute. And yet, the Bitcoin system can only settle about 3 to 7 transactions per second. Mmmm…

Compare this to, say, VISA, the credit card payments company. They alone settle over 56,000 transactions per second during peak times.

Also, the cost of settling Bitcoin transactions is growing. To buy a coffee in Bitcoin today takes over 10 minutes and costs a few dollars for the transaction.

My view
If Bitcoin wants to be more “currency like” it will have to start centralising and becoming a lot more like existing currencies. It will have to change its structure to allow the balance sheets of the system to grow extremely rapidly as the market for them grows. In effect, it will have to become more like existing currencies. Which will then beg the question -- why change to a new private currency that works fundamentally the same as the existing one?

## Monday, September 4, 2017

### Finding Australia's "missing million"

I am responding here to Aidan Morrison's brilliant deep dive into the ABS population statistics entitled "The Missing Million: Is Australia's migration rate actually high?".

1. The ABS always strings together their data after series breaks. It is really bad in the economic data where the whole concept of what they are trying to measure can change (like the 1998 CPI revision). You could do a similar deep dive into every ABS dataset and finish with more questions than answers.

2. Many people who use the data (including most of those people in your example) know there is a series break in 2006. But as you have shown, it doesn’t really make much of a difference in the end. The divergence with the raw arrivals/departures data that started in the early 2000s remains. The new 12/16 rule applies symmetrically to those who leave and arrive, and although the ABS notes that it increases the NOM estimate during their 2003-06 test period, this was kind of the point. They were classifying many arrivals as short-term (i.e. not in ERP) when they stayed more than 12 out of 16 months, but not consecutively. This applies to much of the international student cohort, of which there are now over 600,000, compared to 200,000 in 2001.

3. My point is, the discrepancy you point out between your physically present population (PPP) and the estimated resident population (ERP) is not primarily because of this change in methodology in 2006. The difference is simply the number of residents currently abroad, short term, at any point in time, minus short term visitors (under the new definitions of short-term). The census also won’t catch the million residents who are abroad that night.  And while short term departures are growing, the number abroad at any point in time will grow as well.

4. The new methodology means that the ERP is higher than the old methodology because it makes sense to count people who reside in Australia more than 12 out of 16 months as residents who need the type of long-term facilities that residents need. In my view, ERP is the more important concept economically than physical bodies on the ground on any day. It also matches more closely the way these things are measured internationally.

5. So if the whole issue boils down to net short-term movements what is causing the change since 2001-02? From ABS 3401 we see that this is mostly from the rise in short-term resident departures for holidays!

Also, mostly these trips are for less than a couple of months.

We can see that the increasingly popular destinations are NZ (big boost in 2003-04), Indonesia (likely Bali) and the US. Less so to China or India, as many might expect.

I would guess that retirees are a big portion of the post-2002 short term departures boom (a lot of baby boomers started retiring 10 years ago). There are plenty of anecdotes to back this up. And it’s now a hot button political issue that pensioners are getting the pension while on cruises and travelling abroad.

The data also shows that the number of people over 65 travelling abroad has tripled in the 10 years to 2015-16, with a relative decline in the share of short-term resident departures coming from people aged 30-60.

The other point to note is that both the baby boomers and their children (the baby-boomer echo) were, in the past ten years, at the stage of life where they are more likely to travel abroad.

We can see below that what data we have shows that people over age 60 have been a larger share of short-term departures recently, with people aged 30-60 being a declining share of the total.

6. Which brings us full circle. The 2006 methodology change meant that some inward immigration which was previously considered short-term, like international students, is now considered long term (i.e. residents), while there has been a rise in short-term departures from baby-boomers and their children holidaying in Bali!

Should we subtract retirees on holidays in Indonesia and on cruise ships from our resident population figures? I suspect not. Do their holidays mean that inbound residents residing more than 12 out of 16 months don't need to be considered in terms of housing and infrastructure needs? Probably not.

Overall, after a lot of thinking on this topic, I suspect that the ABS data, although imperfect, and although hiding a series break, is probably the ‘better’ metric to use in planning and economic analysis.