Why you think this price discrimination scheme is effective?

Answer these questions from the article:

1. Why you think this price discrimination scheme is effective?

2. What role is Amazon playing in defeating the price discrimination scheme used by the author?

the article is below:

Amazon has made it much easier to defeat international price discrimination schemes, (like the one used by the authors of this book.)

Managerial Economics (Hardcover)
by Luke M. Froeb,Brian T. McCann,Michael R. Ward,Mike Shor

 

United States
United Kingdom
Germany
France
Canada

USD
USD
GBP
USD
EUR
USD
EUR
USD
CAD
USD
Item price
$194.61
$194.61
£105.00
$150.10
€230.34
$256.30
€227.10
$252.70
C$259.95
$188.33
Shipping per item
Free
Free
£2.99
$4.27
Free
Free
€1.90
$2.11
C$1.99
$1.44
Sub-total
$194.61
$194.61
£107.99
$154.37
€230.34
$256.30
€229.00
$254.81
C$261.94
$189.77
Cost per shipment
Free
Free
£3.99
$5.70
€14.00
$15.58
€9.00
$10.01
C$7.99
$5.79
Total
$194.61
$194.61
£111.98
$160.08
€244.34
$271.88
€238.00
$264.83
C$269.93
$195.56

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Amazon.com (Links to an external site.)
Buy at
Amazon.co.uk (Links to an external site.)
Buy at
Amazon.de (Links to an external site.)