Belief in a distinction between positive and negative rights is usually maintained, or emphasized, by libertarians, who believe that positive rights do not exist until they are created by contract. The United Nations Universal Declaration of Human Rights lists both positive and negative rights (but does not identify them as such). The constitutions of most liberal democracies guarantee negative rights, but not all include positive rights. Nevertheless, positive rights are often guaranteed by other laws, and the majority of liberal democracies provide their citizens with publicly funded education, health care, social security and unemployment benefits.