By examining historical price data as mobile-phone coverage was extended down the coast between 1997 and 2001, Mr Jensen was able to show that access to mobile phones made markets much more efficient.

通过考察1997至2001年间，当移动电话的覆盖范围逐渐扩展到这个海岸时的历史价格，詹森先生能够表明手机的到来使市场更有效率。

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By examining historical price data as mobile-phone coverage was extended down the coast between 1997 and 2001, Mr Jensen was able to show that access to mobile phones made markets much more efficient.

通过考察1997至2001年间，当移动电话的覆盖范围逐渐扩展到这个海岸时的历史价格，詹森先生能够表明手机的到来使市场更有效率。

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