This thesis consists of three essays tied together with the common thread of technical analysis in asset pricing. They extend the technical analysis literature on data snooping bias, long-range dependence, and mixed frequency technical trading, respectively. The first essay introduces an aggregate technical trading index by extracting the most relevant forecasting information contained in 7,846 technical trading rules to predict equity risk premium in the U.S. The proposed method significantly outperforms the existing false discovery rate (FDR) method in both in-sample and out-of-sample analysis. The second essay focuses on the use of macroeconomic variables and technical indicators’ ability to predict equity risk premium. A Bullish Index i...