Burrito chain Chipotle Mexican Grill CMG.N announced it would hike the average hourly wage of its workers to $15, a further sign that the worker shortage in the face of a demand revival could add fuel to the inflation surge. That worker shortage, along with a supply drought in the face of booming demand could contribute to what is seen as inevitable prices spikes, which the U.S. Federal Reserve has repeatedly said are unlikely to translate into long-term inflation. Market participants will scrutinize the Labor Department's CPI report, due early Wednesday, for further signs of potential inflationary pressures.