6 citations · 12 across the 20 of their papers we have counts for
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Stochastic evolutionary dynamics in structured populations: Network degree governs evolutionary stability
Vikash Kumar Dubey, Sagar Chakraborty
Stochasticity shapes evolutionary dynamics in finite populations beyond the reach of infinite-population theories. Using a stochastic birth--death framework on random regular netwo…
Stochastic ultimatum game: Spite-driven resource feedback fosters fairness
Arunava Patra, Prosanta Mandal, Sagar Chakraborty
Resource scarcity can fundamentally encourage antisocial behaviour, whereas resource abundance can promote fair behaviour. Experimental evidence indeed suggests that scarcity induc…
Upstream reciprocity versus downstream reciprocity: Catalyzing cooperation
Vikash Kumar Dubey, Sagar Chakraborty
Why would anyone help a stranger, knowing they may never meet again? Indirect reciprocity offers one of the most compelling evolutionary answers, yet its two canonical forms -- ups…
Overcoming unfairness via repeated interactions in mini-ultimatum game
Prosanta Mandal, Arunava Patra, Sagar Chakraborty
Repeated interactions are ubiquitous and known to promote social behaviour. While research often focuses on cooperation in the Prisoner's Dilemma, experimental evidence suggests re…
Braess's paradox in tandem-running ants: When shortest path is not the quickest
Joy Das Bairagya, Udipta Chakraborti, Sumana Annagiri +1
Braess's paradox -- where adding network capacity increases travel time -- is typically attributed to selfish agents. Although eusocial colonies maximize collective fitness, we fin…
Collaboration drives phase transitions towards cooperation in prisoner's dilemma
Joy Das Bairagya, Jonathan Newton, Sagar Chakraborty
We present a collaboration ring model -- a network of players playing the prisoner's dilemma game and collaborating among the nearest neighbours by forming coalitions. The microsco…
Adaptive dynamics of eco-evolutionary repeated games: Effect of reward and punishment
Prosanta Mandal, Suman Chakraborty, Vaibhav Madhok +1
Long-term evolutionary processes can strongly influence common-pool resource conservation by generating new traits or behaviours that modify the feedback between population strateg…
Oscillatory evolutionarily stable state and limit cycle in replicator dynamics
Suman Chakraborty, Vikash Kumar Dubey, Vaibhav Madhok +1
The idea of evolutionarily stable state (ESS) of a population is a cornerstone of evolutionary game theory; moreover, it coincides with the game-theoretic concept of Nash equilibri…