Divide the pie by country (IMAGE) PNAS Nexus Caption Average proposal equality (A) and the fraction of exclusionary alliances proposed (B) by country. Credit Andrzej Baranski and Nicholas Haas Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.