Vicky Chuqiao Yang
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View article: A generative model of function growth explains hidden self-similarities across biological and social systems
A generative model of function growth explains hidden self-similarities across biological and social systems Open
From genomes and ecosystems to bureaucracies and cities, the growth of complex systems occurs by adding new types of functions and expanding existing ones. We present a simple generative model that generalizes the Yule-Simon process by inc…
View article: Synthesis of innovation and obsolescence
Synthesis of innovation and obsolescence Open
Innovation and obsolescence describe the dynamics of ever-churning social and biological systems, from the development of economic markets to scientific and technological progress to biological evolution. They have been widely discussed, b…
View article: A first-principles mathematical model integrates the disparate timescales of human learning
A first-principles mathematical model integrates the disparate timescales of human learning Open
Lifelong learning occurs on timescales ranging from moments to decades. People can lose themselves in a new skill, practice for hours until exhausted, and pursue mastery intermittently over decades. A full understanding of learning require…
View article: What Leads to Administrative Bloat? A Dynamic Model of Administrative Cost and Waste
What Leads to Administrative Bloat? A Dynamic Model of Administrative Cost and Waste Open
Administrative burden has been growing in organizations despite many counterproductive effects. We develop a system dynamics model to explain why this phenomenon occurs and to explore potential remedies. Prior literature has identified beh…
View article: Inter-city firm connections and the scaling of urban economic indicators
Inter-city firm connections and the scaling of urban economic indicators Open
Cities exhibit consistent returns to scale in economic outputs, and urban scaling analysis is widely adopted to uncover common mechanisms in cities’ socioeconomic productivity. Leading theories view cities as closed systems, with returns t…
View article: How much regulation do we need from genomes to society?
How much regulation do we need from genomes to society? Open
Regulatory functions are essential in both socioeconomic and biological systems, from corporate managers to regulatory genes. Regulatory functions come with substantial costs and benefits, and the balance of the two is often taken for gran…
View article: What Leads to Administrative Bloat? Modeling the Dynamics of Administrative Cost and Waste
What Leads to Administrative Bloat? Modeling the Dynamics of Administrative Cost and Waste Open
View article: How Social Influence Shapes Collective Intelligence in Binary Choices: Reconciling Disparate Findings with a Mathematical Model
How Social Influence Shapes Collective Intelligence in Binary Choices: Reconciling Disparate Findings with a Mathematical Model Open
View article: "Collective Intelligence as Infrastructure for Reducing Broad Global Catastrophic Risks"
"Collective Intelligence as Infrastructure for Reducing Broad Global Catastrophic Risks" Open
Academic and philanthropic communities have grown increasingly concerned with global catastrophic risks (GCRs), including artificial intelligence safety, pandemics, biosecurity, and nuclear war. Outcomes of many, if not all, risk situation…
View article: What makes Individual I's a Collective We; Coordination mechanisms & costs
What makes Individual I's a Collective We; Coordination mechanisms & costs Open
The collective effort exceeds the sum of its parts when individuals coordinate and regulate their activities and behaviors. This holds true even in self-organizing systems with open, voluntary participation where coordination occurs implic…
View article: Inter-city firm connections and the scaling of urban economic indicators
Inter-city firm connections and the scaling of urban economic indicators Open
View article: Scaling Laws for Function Diversity and Specialization Across Socioeconomic and Biological Complex Systems
Scaling Laws for Function Diversity and Specialization Across Socioeconomic and Biological Complex Systems Open
Function diversity, or the range of tasks that individuals perform, is essential for productive organizations. In the absence of overarching principles, the characteristics of function diversity are seemingly unique to each domain. Here, w…
View article: Mathematical model bridges disparate timescales of lifelong learning
Mathematical model bridges disparate timescales of lifelong learning Open
Lifelong learning occurs on timescales ranging from minutes to decades. People can lose themselves in a new skill, practicing for hours until exhausted. And they can pursue mastery over days or decades, perhaps abandoning old skills entire…
View article: Collective Intelligence as Infrastructure for Reducing Broad Global Catastrophic Risks
Collective Intelligence as Infrastructure for Reducing Broad Global Catastrophic Risks Open
View article: Dynamical system model predicts when social learners impair collective performance
Dynamical system model predicts when social learners impair collective performance Open
Significance In collective decision-making systems, such as committees and governments, many individuals follow others instead of evaluating the options on their own. Can a group settle on the option with higher merit when social learners …
View article: Scaling of urban income inequality in the USA
Scaling of urban income inequality in the USA Open
Urban scaling analysis, the study of how aggregated urban features vary with the population of an urban area, provides a promising framework for discovering commonalities across cities and uncovering dynamics shared by cities across time a…
View article: Dynamical-System Model Predicts When Social Learners Impair Collective\n Performance
Dynamical-System Model Predicts When Social Learners Impair Collective\n Performance Open
A key question concerning collective decisions is whether a social system can\nsettle on the best available option when some members learn from others instead\nof evaluating the options on their own. This question is challenging to study,\…
View article: When do Social Learners Affect Collective Performance Negatively? The Predictions of a Dynamical-System Model
When do Social Learners Affect Collective Performance Negatively? The Predictions of a Dynamical-System Model Open
A key question concerning collective decisions is whether a collective decision-making system can settle on the best available option when some members learn socially instead of evaluating the options on their own. This question is challen…
View article: Dynamical-System Model Predicts When Social Learners Impair Collective Performance
Dynamical-System Model Predicts When Social Learners Impair Collective Performance Open
A key question concerning collective decisions is whether a social system can settle on the best available option when some members learn from others instead of evaluating the options on their own. This question is challenging to study, an…
View article: Falling through the cracks: Modeling the formation of social category boundaries
Falling through the cracks: Modeling the formation of social category boundaries Open
Social categorizations divide people into “us” and “them”, often along continuous attributes such as political ideology or skin color. This division results in both positive consequences, such as a sense of community, and negative ones, su…
View article: Scaling of Urban Income Inequality in the United States
Scaling of Urban Income Inequality in the United States Open
Urban scaling analysis, the study of how aggregated urban features vary with the population of an urban area, provides a promising framework for discovering commonalities across cities and uncovering dynamics shared by cities across time a…
View article: Scaling of Urban Income Inequality in the USA
Scaling of Urban Income Inequality in the USA Open
View article: Greetings from a Triparental Planet
Greetings from a Triparental Planet Open
In this work of speculative science, scientists from a distant star system explain the emergence and consequences of triparentalism, when three individuals are required for sexual reproduction, which is the standard form of mating on their…
View article: The interpretation of urban scaling analysis in time
The interpretation of urban scaling analysis in time Open
Scaling is a general analytical framework used by many disciplines—from physics to biology and the social sciences—to characterize how population-averaged properties of a collective vary with its size. The observation of scale invariance o…
View article: Why Are U.S. Parties So Polarized? A “Satisficing” Dynamical Model
Why Are U.S. Parties So Polarized? A “Satisficing” Dynamical Model Open
Since the 1960s, Democrats and Republicans in U.S. Congress have taken increasingly polarized positions, while the public's policy positions have remained centrist and moderate. We explain this apparent contradiction by developing a dynami…
View article: Urban Science: Integrated Theory from the First Cities to Sustainable Metropolises
Urban Science: Integrated Theory from the First Cities to Sustainable Metropolises Open
View article: Urban Science: Integrated Theory from the First Cities to Sustainable Metropolises
Urban Science: Integrated Theory from the First Cities to Sustainable Metropolises Open
View article: Falling Through the Cracks: A Dynamical Model for the Formation of In-Groups and Out-Groups
Falling Through the Cracks: A Dynamical Model for the Formation of In-Groups and Out-Groups Open
Social categorizations are an important aspect of human society, dividing people into us and them often along attributes such as race or even political ideology. Social categorizations can, on the one hand, lead to a sense of belonging, an…
View article: Falling Through the Cracks: Modeling the Formation of Social Category\n Boundaries
Falling Through the Cracks: Modeling the Formation of Social Category\n Boundaries Open
Social categorizations divide people into "us" and "them," often along\ncontinuous attributes such as political ideology or skin color. This division\nresults in both positive consequences, such as a sense of community, and\nnegative ones,…
View article: Modeling the origin of urban-output scaling laws
Modeling the origin of urban-output scaling laws Open
Urban outputs often scale superlinearly with city population. A difficulty in understanding the mechanism of this phenomenon is that different outputs differ considerably in their scaling behaviors. Here, we formulate a physics-based model…