並前往https://web.ntpu.edu.tw/~jason/162macroeconomics/pdf/25a%20%E7%B8%BD%E5%90%88%E9%9C%80%E6%B1%82%E5%88%86%E6%9E%90%E4%B8%8A%E8%AA%B2%E5%82%99%E5%BF%98.pdf
