The number of days a fan stays in San Antonio during his visit to the Alamo Bowl game is important to the economic impact generated by the game, because lodging expenditures are the item that generates the greatest amount of economic impact of anything attendees spend money on.
One of the key characteristics of FX is the inherrent volatility, as any news item, political or economic can have an impact on at least 2 currencies, i.e. the currency pair, but also on the cross relationships.