If you think economics is a dry subject (people that don't play Bridge all the time).
Or if you have never travelled,
Or if exchange rates don't make sense to you.
Then you don't know about the macPPP - that's the Big Mac PPP - not the computer nerd one.
You can read about it here:
The Big Mac Index.
Economists wanted to synthesise all the elements of an economy into one small packet (product).
They needed something that:
- Is freely available all over the world
- Purchased by almost everyone
- Purchased frequently
- Didn't cost much
- Was uniform in its size shape and content.
- Incorporated as many elements of the economy into one unit as possible
What they came up with was the Big Mac. It costs <$10; It is purchased all over the world - frequently (unfortunately), and wherever you buy it, it is the same - in theory.
Hamburger companies tolerate only small variations in their products - the UK is the only place in the world where you can get sachets of vinegar with your "fries" - or chips as people living in the 'pink' countries (the colour of Commonwealth countries on old maps) call them.
Mind you, since we are discussing a macPPP maybe 'chips' is a better term.
So, what goes into a Big Mac that makes it so suitable for this purpose?
It has extensive labour input - people have to make the thing and manufacture the ingredients.
It includes all of the major components of the economy - transportation, energy,
All Demographics consume it - from Pauper to President - hopefully not so much now.
Like gambling, cigarettes and alcohol, it is simultaneously desirable and repellent - theirs a cost to consuming it.
Large amounts of real estate are involved.
Entertainment is involved.
This one shitty piece of food is a microcosm of society and economy.
The same is true of currency. Each currency unit contains all elements of an economy in a small banknote (even a 'virtual banknote').
To accurately compare 'economies' compare the cost of a Big Mac in each one.
Currently, the USD has been steadily dropping against the UKP. In Feb 2020 it was .87. Now it is .72.
The cost of a Big Mac in the USA is 5.66, in the UK it is 4.44 (in USD) giving a ratio of 0.78
this means that ATM (not automatic teller machine) the UK currency is Undervalued by >10%.
Another useful economic indicator that I created is the "Capuccino test".
The cappuccino test measures "opportunity cost".
Suppose you see something that you quite like and it costs around $50, but you don't desperately need it.
Apply the Cappucino test. Would you spend this money on a luxury item that costs as much as another 'real-world' item such as a Cappuccino?
It basically creates an '
external locus of control' to decide how much you need it. In Bridge terms, a fiscal puppet perhaps?
I applied the same approach to real-life Bridge Clubs - they really came up short compared to Bridge as a video game.
This same principle can be modified and applied in many real-life situations.
The most important and valuable thing to come out of all this is the sure and certain knowledge that you should not travel to Switzerland to buy a big Mac - they charge (in USD) 7.29 - it's like buying a milkshake at Harrods. What's the point?