Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Average cooperation level in the Prisoner's Dilemma (PD) game of two newly linked participants. After each PD round, participants could break social links. Setting new links was either cost-free (DYNAMIC), or else low costs of 0.10€ (DYNAMIC10) or high costs of 0.50€ (DYNAMIC50) arose.
