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        <title>statphys 경제학</title>
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       <dc:date>2026-04-10T13:08:17+00:00</dc:date>
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        <dc:date>2023-09-05T15:46:55+00:00</dc:date>
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        <title>경제학:애로우의_불가능성_정리</title>
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        <description>전제

	*  최소 3개 이상의 원소를 가지는 유한한 정책 집합 $\mathbf{A} = \{ a, b, c, \ldots \}$과 $N$ 명의 개인들
	*  개인의 선호는 소위 완전해서(complete) 임의의 두 정책 $a$와 $b$에 대해 개인 $i$는 반드시 다음 둘 중의 하나이어야 한다 (논의를 간단히 하기 위해 선호도가 정확히 같은 경우는 없다고 가정한다):$a$$b$$a \succ_i b$$b$$a$$b \succ_i a$$a$$b$$c$$a \succ_i b$$b \succ_i c$$a \succ_i c$$P = \{ \succ_1, \succ_2, \ldots, \succ_N\}$$a$$b$$a$$b$$a \succ b$$b$$a$$b \succ a$$a \sim b$$P$$a$$b$$c$$a \succsim b$$b \succsim c$$a \succsim c$$a \succ_i b$$a \succ b$$P$$a \succsim b$$a$$b$$c \succ_1 a…</description>
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