d the invention of the check. Joint stock companies  generated another form of negotiable security, their own shares.  Quotation of these in London coffee-houses in the seventeenth century  was overtaken by the foundation of the London Stock Exchange. By 1800  similar institutions existed in many other countries. It was also the  time of some spectacular disastrous investment projects, one of which  was the great English South Sea Bubble. But all the time the world was  growing more commercial, more used to the idea of employing money to  make money, and was supplying itself with the apparatus of modern  capitalism.          One effect quickly appeared in the much greater attention paid  to commercial questions in diplomatic negotiation from the later  seventeenth century and in the fact that countries were prepared to  fight over them. The English and Dutch went to war over trade in 1652.  This opened a long era during which they, the French and Spanish,  fought again and again over quarrels in which questions of trade were  important. Governments not only looked after their merchants by going  to war to uphold their interests, but also intervened in other ways in  the working of the commercial economy. One advantage they could offer  were monopoly privileges to a company under a charter; this made the  raising of capital easier by offering some security for a return. Such  activities closely involved government and therefore the concerns of  businessmen shaped both, policy and law.                                        The most impressive structural development in European  commerce was the sudden new importance to it of overseas trade from  the second half of the seventeenth century onwards. This was part of  the shift of economic activity from Mediterranean to northern Europe.  By the late seventeenth century. Rising populations and some assurance  of adequate transport (water was always cheaper than land carriage)  slowly built up...