The weak dollar is good for business.  Not, all of them, buy any business that exports its goods, hard goods or intellectual goods, will benefit from the falling dollar.  The other benefit is for the real estate.  The weak dollar makes real estate, especially commercial real estate and even vacation homes much cheaper.  I have been receiving increasing inquiries from European countries about properties in the USA.  Many of my colleagues have received more interest from Canadian buyers.  They are very interested in Scottsdale condos as vacation spots.  With the weaker dollar and the corrected real estate prices, especially condos, the price of real estate is right.  Just don't expect foreign investment to have a very large impact.