Government finance and imposition of serfdom after the Black Death

After the Black Death, serfdom disappeared in Western Europe while making a resurgence in Eastern Europe. What explains this difference? I argue that serfdom was against the interests of the sovereign and was only imposed when the nobility, who needed serfdom to maintain their economic and political standing, had leverage to impose their will. The nobility gained this power through financing the state. Using data from the fourteenth through the eighteenth centuries, I show that serfdom was imposed and strengthened in areas where sovereigns had few other resources to finance the state.