Search Results for author: Joshua B. Plotkin

Found 14 papers, 4 papers with code

Convergence of reputations under indirect reciprocity

no code implementations15 Apr 2024 Bryce Morsky, Joshua B. Plotkin, Erol Akçay

Much of the previous research has focused on the behaviour and stability of equilibria for the replicator dynamics.

Historical constraints on the evolution of efficient color naming

1 code implementation7 May 2023 Colin R. Twomey, David H. Brainard, Joshua B. Plotkin

Color naming in natural languages is not arbitrary: it reflects efficient partitions of perceptual color space modulated by the relative needs to communicate about different colors.

The arrow of evolution when the offspring variance is large

no code implementations6 Sep 2022 Guocheng Wang, Qi Su, Long Wang, Joshua B. Plotkin

The concept of fitness is central to evolution, but it quantifies only the expected number of offspring an individual will produce.

Evolutionary Dynamics Within and Among Competing Groups

no code implementations5 Sep 2022 Daniel B. Cooney, Simon A. Levin, Yoichiro Mori, Joshua B. Plotkin

We apply this theory to analyze how mechanisms known to promote cooperation within a single group -- including assortment, reciprocity, and population structure -- alter evolutionary outcomes in the presence of competition among groups.

Management

Evolution of social norms for moral judgment

no code implementations22 Apr 2022 Taylor A. Kessinger, Corina E. Tarnita, Joshua B. Plotkin

We show that a group initially comprising a minority of the population may nonetheless overtake the entire population--especially if it adopts the Stern Judging norm, which assigns a bad reputation to individuals who cooperate with those of bad standing.

Optimality of intercellular signaling: direct transport versus diffusion

no code implementations20 Apr 2022 Hyunjoong Kim, Yoichiro Mori, Joshua B. Plotkin

There is a critical number of signaling molecules at which the efficiency of the two mechanisms are the same.

Selfish optimization and collective learning in populations

no code implementations15 Nov 2021 Alex McAvoy, Yoichiro Mori, Joshua B. Plotkin

When success is measured as payoff in a game played against another learner, mutual selfishness typically fails to produce the optimal outcome for a pair of individuals.

Mito-nuclear selection induces a trade-off between species ecological dominance and evolutionary lifespan

1 code implementation8 Nov 2021 Débora Princepe, Marcus A. M. de Aguiar, Joshua B. Plotkin

We find that strong selection for mito-nuclear compatibility reduces the equilibrium number of species after a radiation, increases the species' abundances, while simultaneously increasing both speciation and extinction rates.

The evolution of forecasting for decision making in dynamic environments

1 code implementation30 Jul 2021 Andrew R. Tilman, Vítor V. Vasconcelos, Erol Akçay, Joshua B. Plotkin

Forecasting types can invade but not overtake the population, producing a stable coexistence with myopic types.

Decision Making Management

Inequality, Identity, and Partisanship: How redistribution can stem the tide of mass polarization

no code implementations26 Mar 2021 Alexander J. Stewart, Joshua B. Plotkin, Nolan McCarty

The form of political polarization where citizens develop strongly negative attitudes towards out-party policies and members has become increasingly prominent across many democracies.

Measuring frequency-dependent selection in culture

no code implementations25 Mar 2021 Mitchell G. Newberry, Joshua B. Plotkin

We develop a maximum-likelihood method to infer the precise form of FDS from time series of trait abundance, and we apply the method to data on baby names and pet dog breeds over the last century.

Cultural Vocal Bursts Intensity Prediction Time Series Analysis

Optimal, near-optimal, and robust epidemic control

1 code implementation5 Apr 2020 Dylan H. Morris, Fernando W. Rossine, Joshua B. Plotkin, Simon A. Levin

Here we derive the theoretically optimal strategy for using a time-limited intervention to reduce the peak prevalence of a novel disease in the classic Susceptible-Infectious-Recovered epidemic model.

Evolutionary forces in language change

no code implementations2 Aug 2016 Christopher A. Ahern, Mitchell G. Newberry, Robin Clark, Joshua B. Plotkin

Languages and genes are both transmitted from generation to generation, with opportunity for differential reproduction and survivorship of forms.

Negation

Cannot find the paper you are looking for? You can Submit a new open access paper.