Ⅰ 鏁堢敤鏈澶ф椂瀵逛袱縐嶅晢鍝佺殑璐涔伴噺
瑕佷嬌鏁堢敤鏈澶э紝鏁堢敤鍑芥暟鍜岄勭畻綰︽潫綰跨浉鍒囷紝鍗寵竟闄呮浛浠ｇ巼錛圡RS錛夌瓑浜庝環鏍間箣姣斻
MRS錛滿U(X1)/MU(X2)=(X2)/(X1)=P1/P2=1/2錛涘嵆)(X2)/(X1)=1/2錛
鍙 (X1)+2(X2)=2
瑙ｅ緱錛歑1錛1錛沊2錛1/2
錛堟敞錛歁U(X1)鏄錛圶1錛夌殑杈歸檯鏁堢敤錛孧U(X2)鏄錛圶2錛夌殑杈歸檯鏁堢敤銆傝竟闄呮晥鐢ㄦ槸瀵規晥鐢ㄥ嚱鏁拌繘琛屾眰鍋忓肩殑緇撴灉錛
2銆丮RS錛1/2
3銆佸簲璇ユ槸澶т簬1/2錛屾棤璁烘槸浠庡浘鍍忎笂鐪嬶紝榪樻槸浠庨昏緫涓婃帹鐞嗛兘搴旇ユ槸澶т簬1/2銆
鍚勮喘涔3涓鍗曚綅鏃訛紝鏄劇劧鍟嗗搧2璐涔扮浉瀵硅繃鍓╋紝鑰屽晢鍝1鐨勮喘涔扮浉瀵逛笉瓚籌紝鎵浠X1瀵筙2鐨勮竟闄呮浛浠ｇ巼浼氭瘮鍧囪鏃舵洿澶с
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