A positive shock to a society’s supply of human capital can come from exogenous and unanticipated immigration. One such case arose from Louis XIV’s precipitous revocation of the Edict of Nantes, which forced French Calvinists – Huguenots – to convert or to flee. Many fled to the Protestant regions of Germany, where – owing to the Huguenots’ renowned expertise and entrepreneurship – they contributed greatly to subsequent economic development. Only some of Germany’s many Protestant cities, however, welcomed the refugees. Analysis of sixty cities’ attitudes contradicts the idea that powerful guilds opposed, or that pre-existing human capital favored, the admission of the Huguenots. Rather, a city was likelier to welcome them the closer it lay to a major trade route, or the more of its population it had lost in the Thirty Years’ War. Territorial rulers almost unanimously welcomed the Huguenots and often compelled reluctant cities to admit them. Animated by the ideas of Seckendorff, rulers saw in the Huguenots both a welcome influx of human capital and a way to undermine the craft guilds, which Seckendorff regarded as a major impediment to economic growth.

Pufendorf is mainly remembered as a natural law philosopher but he was also an influential historian and a public intellectual. Apart from an early phase where his historical interests followed a conventional antiquarian course he focused on recent or contemporary history as evidenced by his popular and much translated, adapted and imitated European History (1680), his acerbic pamphlet History of Popedom (1679), and the monumental ex officio treatments of recent history of Sweden and Brandenburg: History of Gustavus Adolphus and Christina (1686), History of Charles Gustavus (1696) and History of Frederick William (1695). Pufendorf's historical works are informed by a clear and simple vision of states as unified agents acting within a framework of real (moderate) and imaginary (unrealistic), permanent (geopolitical) and temporary (contingent) interests. He combined this vision, informed by his natural law theory, with an abiding interest in diplomacy and decision making and a corresponding disregard for the concrete political players and the action on the battlefield. As royal Swedish and later electoral Brandenburg historiographer he had privileged access to archival sources. He used this to bolster his authority but also to present a firmly streamlined and occasionally biased account in harmony with his religious and political loyalties.