A quick look at AIB’s share price tells you things are going well. The share is up 11 per cent in 2023, and up 348 per cent since the beginning of Covid.  When a company’s share price is going up it’s either making more money, or the stock market is more optimistic about its future moneymaking ability, or both. In AIB’s case, it’s both.  The reason AIB is making more profits is because interest rates are up. Higher interest rates mean it has to pay its depositors a bit more, and it makes a bit more than that on its…