The paper develops a theoretical model such that the performance of the macroeconomy is consistent with optimizing the behavior of rational individuals. It demonstrates that, in principle, it is possible to convert existing trade barriers into tariffs by using the price-gap method. In practice,...

In February 1998, Osama Bin Laden published a signed statement calling for a fatwa against the United States for its having 'declared war against God'. As we now know, the fatwa resulted in the unprecedented attack of 9/11. The issue of whether or not 9/11 was in any way predictable culminated...