To show that indirect reciprocity can stabilize collective action without the second-order free rider problem, we consider a large population subdivided into randomly formed social groups of size n.

Currently, global health is failing in equity, reciprocity, and genuine bi-directional partnerships. Global health is dominated by individuals and institutions in high-income countries (HICs) who ...

You’re probably aware that each state has its own real estate license requirements, unique laws and regulations around real estate licensure. So, should you want or need to move to another state, does ...

Students graduating from South Dakota high schools this spring and attending college at a University of Minnesota campus this fall will have some form of continuing reciprocity rates when they start ...

Over the last three decades, carrying concealed guns in public in the United States has become easier and easier. First, in the 1990s, states began to guarantee permits to anyone who could legally own ...

Shaneen Allen, a Philadelphia mother of two, was arrested during a traffic stop three years ago after she crossed from Pennsylvania into New Jersey with a loaded .380-caliber Bersa Thunder handgun -- ...

The Trace reports on concealed carry reciprocity, and what it means if Congress passes a bill effectively allowing the ...