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1·Hedge funds are perfect examples of the speculative trader and arbitrageur.

对冲基金就是投机交易员和套利者的完美例证。

2·In pure or riskless arbitrage transactions, the purchase and re-sale of the asset in question are conducted simultaneously, thus the arbitrageur does not risk any of their own funds.

在纯套利或无风险套利交易中，资产的购买和转售是同时进行的，因此套利者自己的资金不承担任何风险。