What is contingency theory in management? Contingency theory is a management theory that argues there is no single best approach to management; instead, it asserts that effective leadership is ...

Substance use disorders have contributed to an alarming decline in life expectancy in the United States. In 2018, approximately 130 people died every day from an opioid overdose. Many others died from ...

An approach called contingency management rewards drug users with money and prizes for staying abstinent. But few programs offer it, in part because of moral objections to the concept. By Abby ...