The Ten Surprises of 2015 have two prevailing themes. The more dominant is that the decline in the price of oil is generally a positive for the world. It puts money in the pockets of consumers everywhere and it is likely to force Iran and Russia to be more conciliatory in geopolitical negotiations because both countries are suffering not only from the drop in the oil price, but also from the sanctions imposed on them. The second theme is that in spite of notable economic problems in Europe, China and Japan, the United States equity market will have another good year.