Gary Leff

Gary Leff

Chief Financial Officer, Mercatus Center at George Mason University

Gary Leff is the chief financial officer at the Mercatus Center at George Mason University.

Previously he was the director of development for Mercatus, and prior to that the program director for the Institute for Humane Studies Liberty & Society summer seminars.  

He has assisted several market-oriented organizations with their fundraising programs, having written direct mail prospecting letters for them under the signatures of Dick Armey, Tom DeLay, Bill Archer, Paul Ryan, and others.

He has been cited in numerous publications including the New York Times, Wall Street Journal, Financial Times, San Francisco Chronicle, Washington Post and his favorite, Austin Womanmagazine.   

Mr. Leff first came to Washington as a Charles G. Koch Summer Fellow at the Tax Foundation where he co-authored (with Arthur P. Hall) the excitingly-titled "A Half Century of Small Business Federal Income Tax Rates and Collections."

A renowned expert on airline, hotel, and credit card loyalty programs, Mr. Leff served as senior moderator and member-elected board president of, the world’s most popular online travel community. He was named one of five voices to listen to on business travel by Inside Flyer magazine, and one of five travel experts to follow on Twitter by Conde’ Nast Travel. The launch of his blog in 2008 at was covered in the New York Times and International Herald Tribune, and its influence over the travel industry has been noted in multiple stories by the New York Times and Washington Times.