The article discusses how to make the best decisions about money in an economy where prices don't change quickly. It looks at different ways that businesses decide on prices, and how this affects inflation. The researchers figure out the best way for a central bank to handle inflation and the economy, depending on how much they look ahead or back. They also look at how to respond to sudden increases in costs. The study doesn't consider how other countries might affect these decisions, but that will be looked at in future research.