The economist that seems to be on every politicians speed dial won’t be attending Thursday’s “Economic Summit” at the Connecticut Convention Center.

Mark Zandi, chief economist of Moody’s Analytics, has been called to Washington D.C. to testify before Congress as President Obama’s jobs plan seems to have finally met Republican opposition in less than a month.

Zandi will be replaced on the agenda by Steven G. Cochrane, managing director of Moody’s Analytics, who will join the summit by video conference. Cochrane oversees the U.S. regional forecasting service and edits the Regional Financial Review, the firm’s monthly publication that analyzes U.S. macro, regional, industry and international trends.

The “Economic Summit” is part of Gov. Dannel P. Malloy’s effort to help spur job creation in the state, which has lost jobs for the past 22 years.

“Connecticut has had a long and storied economic history; at times we’ve reinvented our state, at times we helped reinvent our nation,” Malloy said in a press release last month announcing the summit. “Too often today, businesses think our state’s best days are behind it. That couldn’t be further from the truth.”

Ideas and recommendations made at the summit may be included in the Oct. 26 special legislative session on jobs.

The Oct. 6 agenda is still fluid at the moment, but Scott Case of StartUp America, one of the other big headliners at the event will still be attending. Case, the founding chief technical officer of Priceline, will talk about innovation and job growth.

According to his biography, Case also helped build a portfolio of intellectual property at the Walker Digital Invention Laboratory, and is a named inventor on dozens of U.S. patents including the underlying portfolio for Priceline.

Jeff Hoffman, another Priceline founder, was in Hartford a few weeks ago to help kick off the city’s first StartUp weekend event. Priceline is located in Norwalk.

Rounding out the agenda of speakers at the all-day “Economic Summit” is Mitch Horowitz, a managing director of Battelle’s Technology Partnership Practice, Bryan Hancock, partner in McKinsey & Company and a leader of McKinsey’s talent management initiative.

University of Connecticut President Susan Herbst, Yale’s Vice President and Director of New Haven and State Affairs Bruce D. Alexander, and interim President of the new Board of Regents Robert Kennedy will also host a panel discussion about the role of academia in economic development.