個經-Bertarnd的問題 - 經濟

By Kristin
at 2006-06-21T18:13
at 2006-06-21T18:13
Table of Contents
題目:兩家廠商的生產成本為0
市場中消費者對商品一的需求函數:Q1=100-3P1-P2
對商品二的需求函數:Q2=100-P1-3P2
當兩家廠商進行Bertarnd價格競爭均衡時,其定價P1 P2為多少?
我想的是 在雙方競爭下,最終P1=MC=P2
因為MC=0 所以 P1=P2=0
但是我同學有另外一種想法:他認為題目中的商品為異質品
所以 用價格競爭的解法算出為P1=100/7 P2=100/7
不知道哪種算法對?
書中Bertarnd模型的假設為同質產品,那它有異質的假設嗎?算法有什麼不同?
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