Amazon.com Inc. projected operating income in the current quarter that fell short of analysts’ estimates, worrying investors that the tech giant is spending too much to keep up with competitors in the race for artificial intelligence. Operating profit will be $15.5 billion to $20.5 billion in the period ending in September, compared with an average estimate of $19.4 billion. Sales will be $174 billion to $179.5 billion, the company said Thursday in a statement. Analysts, on average, expected $173.2 billion. Chief Executive Officer Andy Jassy is engaged in an AI infrastructure arms race with Microsoft Corp. and Alphabet Inc. that requires heavy spending on data centers. Both of those rivals reported strong earnings earlier this week showing they are benefiting from the AI boom. Anurag Rana and Poonam Goyal join Bloomberg Businesswek Daily to discuss.