%0 Journal Article %T An Inquiry into the Optimal Portfolio for Equity and Real Estate in Japan %A Chikashi Tsuji %J iBusiness %P 37-44 %@ 2150-4083 %D 2024 %I Scientific Research Publishing %R 10.4236/ib.2024.162003 %X This paper examines the optimal portfolio selection problems for equity and real estate in Japan. Specifically, we empirically analyze the time-varying optimal portfolio weights for the TOPIX and the J-REIT from April 2003 to June 2013 and from July 2013 to October 2023. Our findings reveal that in the more recent period, higher portfolio weights for the J-REIT are more effective in constructing the two-asset portfolio of the TOPIX and the J-REIT. In other words, our results indicate that in the more recent period, lower portfolio weights for the TOPIX are more efficient in building the two-asset portfolio. %K J-REIT %K MGARCH %K Optimal Portfolio Weight %K TOPIX %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=133368