Peter and Paul, who work in the same company, are having a serious debate regarding the state of the economy, during their lunch break. Although both of them are doing fine, Paul thinks that rising wages may be a precursor to rising unemployment. Last quarter, there was a slight increase in the unemployment rate. He tells Peter that their company may start firing people soon and that they may have to move back in with her parents. What does the economy have to do with them possibly having to move back in with her parents?