John Philip Rust (born May 23, 1955) is an American economist and econometrician.John Rust received his PhD from MIT in 1983 and taught at the University of Wisconsin, Yale University and University of Maryland before joining Georgetown University in 2012.John Rust was awarded Frisch Medal in 1992 and became the fellow of Econometric Society in 1993.John Rust is best known as one of the founding fathers of the structural estimation of dynamic discrete choicemodelsand the developer of the nested fixed point (NFXP) maximum likelihood estimator which is widely usedin structural econometrics.However, he had published papers on broad range of topics includingequilibrium in the markets of durable goods,social security, retirement, disability insurance,nuclear power industry, real estate economics, rental car industry,transportation research,auction markets,computational economics, dynamic games.