邊際借款人英語怎麼說及英文翻譯

A. 英語翻譯漢語,經濟學原論裡面的幾句話之四。高分懸賞啊！！！

1. Total utility is the total amount of satisfaction expected from consuming an item or group of items.
【總效用[也稱TU]，是指消費者（在一定時間內）消費一個或一定數量商品所帶來的滿足程度的總和。】
2. Marginal utility is the addition to total utility from consuming one more unit of a good.
【邊際效用[也稱MU]，邊際效用指消費者（在一定時間內）增加一個單位商品所帶來的總效用的增量。】
3. Consumers, in deciding among items, choose those items with the highest marginal utility per dollar.
【消費者在決定購買哪種商品時，會選擇那些每美元中擁有最高的邊際效應的商品。】
4. An indivial maximizes total utility by consuming all items so that the marginal utilities per dollar spent are equal.
【每個人在消費物品時都會在保證使的總效用最大化來是的每美元中的邊際效應相等。】
5. Utility theory has been criticized on the grounds that utility is not measurable and that items consumed are not perfectly divisible as the theory of utility maximization requires. Despite these criticisms, utility theory is a useful tool for analyzing consumer behavior.
【效用理論由於其不可測量性以及消費的商品並不像效用最大化所要求的那樣可完美分割（兩個原因）而受到批評。盡管如此，效用理論仍然是分析消費者行為的一種很有用的工具】

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