First, there are some natural overlaps between policy measures. Some policy pairs that serve as examples include industrial policy and environmental policy, human rights and security, or financial services regulation and monetary policy. Second, integration might allow for broader and longer-term reciprocity when making agreements. For example, including intellectual property rights as a topic for negotiation in the Uruguay Round of trade negotiations broadened reciprocity, allowing more complex barter arrangements. These types of complex barter may also serve to promote compliance with international legal rules, providing greater capacity for retaliation in the event of violation. Third, in an embedded liberalism sense, one type of instrument might serve to balance out the distributive effects of another type of instrument. Thus, trade liberalization might be combined with more extensive aid for development. Fourth, there may be economies of scale or scope in the development of institutions. It may not be efficient to create an institutional structure for dispute settlement in connection with disputes regarding division of the international tax base, but if an institutional structure has already been created to deal with foreign investment disputes or trade disputes, adding to the jurisdiction of these structures might be more attractive.