施 永 青：不 再 當 世 界 工 廠
看罷該文我的第一個反應是：

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Update on overbidding of Amazon gift certificates on Ebay

Some Statistics:
Time Period: Oct-31 – Nov-14
Total Records: 150

# Overpriced: 18 (out of 117; 15.4%)

Overprice
$: Mean: $4 Median: $1 SD: $6.1
%: Mean: 0.049% Median: 0.022% SD: 0.071%

Value of Coupon conditional to overpriced
Mean: $88.1 Median: $50 SD: $106.7