Sure. Clearly, it was an imbalance between demand and supply. We can go back to hundreds of years of economic research and economic theory that talk about how when demand is greater than supply, you end up with upward pressure on prices. That was the case in broader commodity prices as we recovered from the initial onset of the pandemic, and then afterwards we ended up with Russia's invasion of Ukraine. That part of the world is a major producer of virtually every major commodity, so that further worsened that problem.
We had the situation with the pandemic, and we had limited spending on services. Therefore, there was a lot of spending on goods. People were buying things for their home instead of going on vacations. That further snarled global supply chains. Finally, as we reopened our economy, there was a lot of pent-up demand for going to restaurants, going on vacations and getting haircuts. All of a sudden, we ended up with a tremendous amount of pressure. At the same time, many service providers were having a difficult time filling the jobs. I was out early after the reopening. Restaurants would be closed a couple of days a week because they couldn't get enough staff to open up every day.
All that contributed to this upward pressure on prices. Fortunately, a lot of those pressures are now starting to turn the other way, so the inflation prospects are pretty favourable.