The Great Tuck Shop Heist of 2002

Most people in Ireland remember 2002 for either the World Cup or the launch of the Euro. I remember it for the tuck shop at my school and being worried about being scammed out of my pocket money. Looking back, it wasn’t just about currency conversion, It was the beginning of a lifelong obsession with economics.

The Problem: 0.787564

When Ireland joined the Eurozone, the transition from the Irish Pound (the Punt) to the Euro was not a clean break. It was a messy, five-week divorce. We were told we could spend Punts, but we’d get Euro back. And the exchange rate? It wasn't a nice, round number. It was 0.787564!

While most of my classmates were excited over the shiny new coins that looked like they belonged in a board game, I stood in the shop queue full of concern. There wasn’t a calculator in sight. The Principal, a man whose approach to fiscal policy could best be described as "Ah, sure lookit, it’ll be grand," was standing by the till. He wasn’t concerned. Nobody was. But I knew there was a problem. The maths couldn’t be solved by guesswork.

Remember, to get a Euro you had to divide a Punt by 0.787564. Most people tried to simply add a quarter (1 Pound is approx 1.25 Euro). However, the problem with this hack was that it was off by about 2 cents for every Pound spent. Over a week of buying crisps and chocolate, that added up.

I remember watching the change being counted out and thinking: Is that rounding up or down? Who decides? And why is no one else bothered that we're essentially guessing at the value of our hard-earned money. I cleaned so many windows for this money!

Rise of an Economist

While my friends saw nothing odd, I saw Asymmetric Information. The school shop was essentially a miniature central bank with zero transparency and a monopoly on the chocolate supply. Every time a rounded cent disappeared into the till, I felt a pain in my soul. I was witnessing the Cost of Living Crisis in real-time, two decades before it became a headline. This wasn't just about pennies; it was about the invisible forces of the market.

A 40p bag of Tayto should have been €0.51. Instead, it magically became €0.55 for convenience (Price Stickiness). We felt richer because we had more units of money, but our purchasing power was actually being eaten away by rounding (Inflationary Psychology).

That January, I didn't just learn how to convert Punts to Euro. I learned that in the face of economic upheaval, most people will settle for "close enough.” Meanwhile, the people who notice the 0.787564 are the ones who end up forever cursed to fixate on being accurate to the fourth decimal point, and writing about it 24 years later.

Josh