主題:穀賤傷農

稻穀為必需品，ＥＤ＜１（同向小） 穀賤傷農＝Ｐ↓ＴＥ民↓ＴＲ農↓ 穀貴傷民＝Ｐ↑ＴＥ民↑ＴＲ農↑ ＥＤ＝需求彈性 Ｐ＝價格 ＴＥ＝總支出 ＴＲ＝總收入 https://docs.google.com/viewer?a=v&q=cache:gdNT3kNWE-YJ:www.sctcps.hc.edu.tw/classweb1/UploadDocument/2707_2%2520%2520%25B2%25A3%25B7~%25AA%25BA%25A4%25C0%25A4u%25BBP%25A6X%25A7%40.ppt+&hl=zh-TW&pid=bl&srcid=ADGEESiL2nQvEWy690d_4YRVffZnRkngJQHBBZqGxzrJAy9O4ZLqun6qRW9WdhlnjIcRuLfbW3nd5ChJ1-lh0NiCISntGedtSddXViGdCEF9BqYnaBl1IxBqNnmcJlVaCIbD6MM7E_85&sig=AHIEtbTIiI3VP8wZwdWMAPmrF-SIB824zg