At stake is the $1.2 trillion in annual trade between the three countries, as well as the business models of companies such as Ford Motor and GM. that have adapted their supply chains to take advantage of the trade zone.
Scenario planning is essentially a thorough review of "what-if" situations, with potential courses of action created for each. Preparing for various shifts in advance can prevent companies from being caught flat-footed by sudden changes.
U.S. negotiators in recent days put forth a string of bold proposals -- on auto rules of origin, a sunset clause, government procurement, and gutting dispute panels seen by the other nations as core to the pact.