“Substitute’s Effect” & “Income’s Effect” in Economics are the only concepts to understand all of Economics issues as same as a wooden sword that 獨孤求败 (Du Gu Qiu Bai, The Lost Seeker’s Daemon who lived in the past of the legend of condor heroes era) has equipped in his late lifespan.

#Econ101 #มังกรหยก

#TheLegendofCondorHeroes

#武侠 #WuXia

#金庸 #JinYong #กิมย้ง