What happened as a result of the agreement between th united states and canada to eliminate tariffs?

How does the principle of federalism affect the us government

Because of the housing bubble, many houses are now selling for much less than their selling price just two to three years ago. there is evidence that homeowners with virtually identical houses tend to ask for more if they paid more for the house. what fallacy are they making?

What trade did europeans want most before the 1800s ivory wood slaves gold