She received her Ph.D. from Texas A & M University in 2005. Her research focuses on applied macroeconomics, applied econometrics (time series) and economic forecasting. Liu has published in a wide range of journals, such as European Journal of Political Economics, Southern Economic Journal, Economic Inquiry, International Journal of Forecasting, Empirical Economics, etc. She has been a board member of Ohio Association of Economists and Political Scientists (OAEPS) since 2008 and served as the vice president from 2012 to 2013 and president from 2013 to 2014. She currently teaches Principles of Macroeconomics, Time Series Analysis and Quantitative Methods in Business Administration at KSU.