By Olivia Rockeman and Sarina Yoo From Bloomberg News Economists’ inflation expectations keep rising as a variety of key metrics underscore building price pressures. Forecasters raised their estimates for the consumer price index and for a key inflation gauge favored by the Federal Reserve, known as the personal consumption expenditures price index, every quarter through the first half of next year, according to the latest monthly survey of economists by Bloomberg. Compared to a year earlier, the CPI is now forecast to remain above 3 percent through March 2022, peaking at a 4.3 percent year-over-year gain in the current quarter, according to the median forecast in a June 4–9 survey of 77 economists. Data out Thursday showed the gauge rose more than expected for a third straight month. The PCE price index is expected to rise 3.5 percent in the April to June period, up from the 3 percent estimate …