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The bid–ask matrix is a matrix with elements corresponding with exchange rates between the assets. These rates are in ''physical units'' (e.g. number of stocks) and not with respect to any ''numeraire''. The element of the matrix is the number of units of asset which can be exchanged for 1 unit of asset . ==Mathematical Definition== A matrix is a ''bid-ask matrix'', if # for . Any trade has a positive exchange rate. # for . Can always trade 1 unit with itself. # for . A direct exchange is always at most as expensive as a chain of exchanges. 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Bid–ask matrix」の詳細全文を読む スポンサード リンク
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