Collaboration and cooperation between colleagues or friends. Problem solving concept. Business strategy and success concept. Community. Association. Agreements. Racial equality. Teamwork concept.

The world faces a series of urgent environmental, economic and security challenges, with time ticking down to address them. All this is taking place while companies and countries grapple with ...

When people reach for the same object, walk through a narrow doorway, forage for food, or work together on a shared task, they continuously negotiate—often without noticing—how much to cooperate or ...

At the July 2025 launch of America’s AI Action Plan, President Trump said that the country is in a fast-moving competition to ...

Christakis is a physician and sociologist who explores the ancient origins and modern implications of human nature. His latest book is Blueprint: The Evolutionary Origins of a Good Society. He directs ...

Humans have a long history of cooperating together, which has helped us survive and thrive for hundreds of thousands of years in places around the world. But we don’t always cooperate well, even when ...

Many social interactions involving conflicts of interest can be modeled as simple two-person games where each person, or player, chooses between a prosocial, or cooperating, strategy, and an ...

Working in security cooperation isn’t like any other job in defense acquisition. It takes certain distinct skills and knowledge to build the capability and capacity of foreign security forces to ...

Countries cooperate if they perceive it to be in their best interests, both economically and politically. Global cooperation in the aftermath of World War II—through a system of rules, shared ...

Australian Prime Minister Anthony Albanese (L), U.S. President Joe Biden (C) and British Prime Minister Rishi Sunak (R) hold a press conference during the 2023 AUKUS summit in San Diego, California.