* Financial sector to be smaller in U.S. economy-Obama

* New rules to build in U.S. financial system-Obama

By Jeff Mason

WASHINGTON, May 2 (Reuters) - The financial sector will make up a smaller part of the U.S. economy in the future as new regulations clamp down on "massive risk-taking," President Barack Obama said in an interview published on Saturday.

Obama, whose young administration has spearheaded a raft of reforms in the banking sector as part of efforts to tackle the financial crisis, said the industry's role in the United States would look different at the end of the current recession.

"What I think will change, what I think was an aberration, was a situation where corporate profits in the financial sector were such a heavy part of our overall profitability over the last decade," he said told the New York Times Magazine.

"Part of that has to do with the effects of regulation that will inhibit some of the massive leveraging and the massive risk-taking that had become so common."

Obama said some of the job-seekers who may normally have gone to the financial sector would shift to other areas of the economy, such as engineering.

"Wall Street will remain a big, important part of our economy, just as it was in the '70s and the '80s. It just won't be half of our economy," he said.