Abstract: Proficiency in written English is crucial for academic and professional achievement. However, the competency of non-native speakers is an issue in syntax and semantics thus the coherency of ...
I thank Peter Hammerstein for helpful discussion on the topic of helper–exploiter polymorphism. J. S. Weitz, C. Eksin, K. Paarporn, S. P. Brown, W. C. Ratcliff, An oscillating tragedy of the commons ...