The economics of (mis)information in the age of social media. New media technologies allow anyone to broadcast their views, leading to a “cacophony of voices” where misinformation flourishes. Tools from information economics are tailor-made for understanding information consumption in settings with many biased news sources. We develop economic models where many sources compete to attract and influence heterogenous listeners. We then study how misinformation spreads and amplifies when consumers ....The economics of (mis)information in the age of social media. New media technologies allow anyone to broadcast their views, leading to a “cacophony of voices” where misinformation flourishes. Tools from information economics are tailor-made for understanding information consumption in settings with many biased news sources. We develop economic models where many sources compete to attract and influence heterogenous listeners. We then study how misinformation spreads and amplifies when consumers of information communicate with many others through a social network. Finally, we study how to design simple and robust rules to foster informative discourse and filter misinformation. The results will shape economic policy recommendations for regulating misinformation in media platforms and social media.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE140101014
Funder
Australian Research Council
Funding Amount
$349,785.00
Summary
Extending economic design to non-market settings: An experimental study of mechanism design with intention-based preferences. Mechanism design is the engineering side of economic theory, which starts with assumptions regarding human nature and builds economic systems to best maximise efficiency according to these assumptions. This project studies mechanism design in experimental settings where individuals exhibit a desire to be kind to those who have been kind to them and unkind to those who ha ....Extending economic design to non-market settings: An experimental study of mechanism design with intention-based preferences. Mechanism design is the engineering side of economic theory, which starts with assumptions regarding human nature and builds economic systems to best maximise efficiency according to these assumptions. This project studies mechanism design in experimental settings where individuals exhibit a desire to be kind to those who have been kind to them and unkind to those who have not. Such preferences are common in many non-market settings and can have dramatic effects on the efficiency of potential mechanisms. The ultimate goal of this project is to develop applied mechanisms that are robust to heterogeneity in such intention-based preferences and which can be used in bilateral exchange, contract design and many other non-market settings.Read moreRead less
Using behavioural economic insights to overcome student procrastination. This project aims to study the relations between present-biased time preference, procrastination, and achievement at school, using economic experiments. Investment in human capital generates economic benefits for students, families, employers, and society, but its benefits are realised far into the future. Because of these immediate costs and delayed benefits, behavioural economic theory predicts that students will procrast ....Using behavioural economic insights to overcome student procrastination. This project aims to study the relations between present-biased time preference, procrastination, and achievement at school, using economic experiments. Investment in human capital generates economic benefits for students, families, employers, and society, but its benefits are realised far into the future. Because of these immediate costs and delayed benefits, behavioural economic theory predicts that students will procrastinate. This project will identify the characteristics of students at greatest risk of procrastination, evaluate practical strategies to overcome it, and examine whether it is associated with poorer outcomes. This should help schools and policy makers reduce educational inequalities, and yield long-term benefits over students’ lives.Read moreRead less
Voter behaviour and polarisation: The role of social preferences. This project aims to investigate how peer pressure and other social concerns affect voter participation, vote choice, and political polarisation. It will marry behavioural experimental economics with political economics and make use of complementary experimental methods that will allow for the study of carefully controlled elections, followed by a large-scale real-world test of the results. Expected outcomes include improved under ....Voter behaviour and polarisation: The role of social preferences. This project aims to investigate how peer pressure and other social concerns affect voter participation, vote choice, and political polarisation. It will marry behavioural experimental economics with political economics and make use of complementary experimental methods that will allow for the study of carefully controlled elections, followed by a large-scale real-world test of the results. Expected outcomes include improved understanding of how social media and other social factors, and political institutions such as compulsory voting, distort election representation and outcomes. Major benefits include the ability to advise policies to reduce polarisation and improve political institutions to ensure they reflect true societal preferences.Read moreRead less
Status seeking and economic behaviour. The project will look at the importance of status seeking behaviour for the health system, behavioural experiments, international growth, and labelling. The insights will be useful for optimal redistribution policies, international cooperation, and behavioural research.
Information acquisition and voting behaviour. This project aims to understand citizens’ decisions to acquire information about different policy proposals within a democracy and how such information affects their voting behaviour. Proper democracies rely on the informed participation of their citizens in the political debate and political institutions. The project intends to provide formal theories of information acquisition together with empirical evidence on how voting decisions are shaped by t ....Information acquisition and voting behaviour. This project aims to understand citizens’ decisions to acquire information about different policy proposals within a democracy and how such information affects their voting behaviour. Proper democracies rely on the informed participation of their citizens in the political debate and political institutions. The project intends to provide formal theories of information acquisition together with empirical evidence on how voting decisions are shaped by the quantity and quality of information. Understanding how citizens decide to acquire information would help devise policies to reduce polarisation and improve the quality of the political debate and the democracy.Read moreRead less
Human skin equivalent constructs: enhanced culturing and application of laboratory-grown skin through mathematical modelling and in silico experimentation. Laboratory-grown human skin equivalent constructs, given social and legislative imperatives, will be critical for advances in novel treatment protocol definitions for wound repair, dermatogical screening of pharmacueticals and fundamental studies of skin diseases.
In silico studies undertaken in this project will make a significant contrib ....Human skin equivalent constructs: enhanced culturing and application of laboratory-grown skin through mathematical modelling and in silico experimentation. Laboratory-grown human skin equivalent constructs, given social and legislative imperatives, will be critical for advances in novel treatment protocol definitions for wound repair, dermatogical screening of pharmacueticals and fundamental studies of skin diseases.
In silico studies undertaken in this project will make a significant contribution to the effectiveness of the application of human skin constructs, by delivering new and deeper insights into the interplay between dependent processes that regulate the behaviour of skin, in vivo or ex vivo. The models and the researchers associated with this project will drive innovative studies in medical science over the next decade.Read moreRead less
A Mathematical Model of the Roles of Contraction and Oxygen in Human Wound Healing. Slow or impaired wound healing and excessive scarring associated with burns are both painful and costly. Moreover, the debilitating effect of chronic wounds can be expected to increase with the continuing aging of the population and the current rise in incidence of Type 2 diabetes. This project brings together a multidisciplinary team to develop a mathematical model of human wound healing and to drive the modelli ....A Mathematical Model of the Roles of Contraction and Oxygen in Human Wound Healing. Slow or impaired wound healing and excessive scarring associated with burns are both painful and costly. Moreover, the debilitating effect of chronic wounds can be expected to increase with the continuing aging of the population and the current rise in incidence of Type 2 diabetes. This project brings together a multidisciplinary team to develop a mathematical model of human wound healing and to drive the modelling to generate important breakthroughs at the level of basic science with implications for both experimentalists and clinicians.Read moreRead less
A new hierarchy of mathematical models to quantify the role of ghrelin during cell invasion. Ghrelin is a recently-discovered growth factor that regulates appetite and promotes tumour growth by enhancing cell invasion. The mechanisms by which ghrelin enhances cell invasion are, at present, unknown. This innovative project will develop a new hierarchy of multiscale mathematical models that will be used to quantify how ghrelin modulates cell behaviour (motility, proliferation and death) and provid ....A new hierarchy of mathematical models to quantify the role of ghrelin during cell invasion. Ghrelin is a recently-discovered growth factor that regulates appetite and promotes tumour growth by enhancing cell invasion. The mechanisms by which ghrelin enhances cell invasion are, at present, unknown. This innovative project will develop a new hierarchy of multiscale mathematical models that will be used to quantify how ghrelin modulates cell behaviour (motility, proliferation and death) and provide insight into the precise details of how ghrelin promotes cell invasion. This project will demonstrate the potential for ghrelin-based strategies to control cell invasion. By linking appetite regulation and tumour growth, the outcomes from this project will inform Australian health policy in this important area.Read moreRead less