The following table depicts the labor productivity of Germany and France for pairs of shoes and bottles of wine.

Germany France

Shoes 13 19

Wine 11 15

_______ has an absolute advantage in the production of Shoes.

Germany's opportunity cost for a pair of shoes is ______

11/13

13/11

15/19

19/15

11/15

15/11

France'sopportunity cost for a pair of shoes is _______

11/13

13/11

15/19

19/15

11/15

15/11

______ has a comparative advantage in shoes.

The lower bound of the trade price of shoes is _____

11/13

13/11

15/19

19/15

11/15

15/11

13/19

The upper bound of the trade price of shoes is _____

11/13

13/11

15/19

19/15

11/15

15/11

19/13