It's interesting to see how after a credit crisis, economists start to take money and banking a bit more seriously. Adam Smith, who experienced his very own credit crisis -- the collapse of the Douglas Heron and Co , or the Ayr Bank, on June 22, 1772 -- is no exception. His views on money and banking became much more nuanced after that event. Ayr Bank had been founded in 1769 in the Scottish town of Ayr. It expanded to Edinburgh and Dumfries, and in only a few short years it had succeeded in wrestling a significant chunk of Scottish banking business from incumbents the Bank of Scotland and the Royal Bank of Scotland. By 1772, according to Checkland, the Ayr Bank supplied 25% of Scotland's bank notes and deposits. In early June 1772 one of Ayr's largest customers, Alexander Fordyce , skipped London for Paris to avoid debt payments. A run on the Ayr Bank began that precipitated the bank's failure by the end of the month. Upon observing the bank run, David Hume writes from...