Actually, what you're describing pretty much did happen in the UK (which is where this blog post comes from). British supermarkets are generally less willing to

Actually, what you're describing pretty much did happen in the UK (which is where this blog post comes from). British supermarkets are generally less willing to raise prices than elsewhere in the world and certainly didn't increase egg prices to anything like the levels seen in the USA. As a result, during the rough time period where the US had really high egg prices, the UK had egg prices that were more or less normal but the shelves were usually empty.