They kept too many low-value activities in high-cost Japan for too long.

很长一段时间，他们在高成本的日本进行了过多的低产值的活动。

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For more adrenaline highs there's an unbeatable choice of good value activities, from white water rafting and jet boat rides to bungee-jumping and skydiving.

为了寻找更多的刺激，这里是那些极限运动的最佳去处，从白水河漂流和驾驶快艇到蹦极跳和高空飞降。

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The evidence, again fragmentary, suggests that economic theory is working in practice: richer cities are shedding basic manufacturing to concentrate on higher-value activities.

零散的证据显示，经济理论正在实践中奏效：较富裕城市正在放弃基础制造，转而专注于更高附加值的生产活动。

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It ensures that your limited resources get allocated to the highest-value activities.

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Behind this, says Mr Spence, is the trend of American multinationals to keep the highest value-added activities at home while shifting lower value-added activities, such as manufacturing, abroad.

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There are therefore value subtracting activities, not things that make us richer, and we should therefore stop doing them.

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