Three essays on social networks

Social Network Impact on Youth Introduction Online social media have gained astounding worldwide growth and popularity which has led to attracting attention from variety of researchers globally. Although with time all generations have come to embrace the changes social network has brought about, teenagers and young adults are the most fanatic users of these sites. According to various research studies in the field of online social networks, it has been revealed that these sites are impacting the lives of the youth greatly.

Three essays on social networks

First, I develop a model of social network formation with heterogeneous agents and incomplete information. Networks form stochastically, contingent on the private values of each agent, and include more realistic structures than networks arising among homogenous agents.

I characterize the set of equilibria and identify its extremes, which have a natural interpretation as public good provision. One extreme, when agents are all insiders, is equivalent to the provision of a pure public good, and suffers from free-riding.

The other extreme, when every agent but one is an outsider, the equilibrium is equivalent to the provision of an excludable public good, and suffers from coordination problems. I next develop expand this model to study the provision local public goods, such as information, that is shared along the network.

Individuals may choose to provide a public good that is not excludable among their peers in a social network. The network is formed endogenously, as agents non-cooperatively choose their social ties. I characterize the set of equilibria, and examine the relationship between public good provision and social network formation.

I find that the architecture of the social network determines the strategic interaction between link formation and public good provision; for some networks, links are strategic substitutes, so that agents attempt to free-ride on their peer's links.

This leads to higher levels of public good provision, and specialization in roles: Agents either invest in the public good or form links, but not both. For other networks, however, links are strategic complements, so that agents coordinate their links by connecting to central agents.

This leads to lower levels of public good provision, and less specialization; some agents will both link and invest, leading to lower welfare.

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Finally I present a model of time allocation between formal and informal labor supply where workers learn of informal job opportunities from their peers in a social network.

In addition to formal income taxation and enforcement, individuals??? Workers allocate more time to informal activities when tax enforcement is lax and job information transmission is good.

More connected social networks e. Average income may be non-monotonic in tax enforcement Topics:Indeed, network structure is generally considered a proxy for information flow. This assumption is often reasonable. In important contexts of social and economic interest it can, however, be misleading.

IDEALS @ Illinois: Three Essays on Social Networks

This essay draws attention to the specific "substances of advantage" that flow to different types of actors across varied dyadic ties. Social Media Networks Essay Words | 3 Pages. 1.

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Theoretical Framework Social Media networks have profoundly changed the propagation of information by making it incredibly easy to share and digest information on . In three chapters I study the formation of social networks, and the impact the structures that arise may have in various economic settings.

First, I develop a model of social network formation. In three chapters I study the formation of social networks, and the impact the structures that arise may have in various economic settings. First, I develop a model of social network formation.

THREE ESSAYS ON SOCIAL NETWORKS AND THE DIFFUSION OF INNOVATION MODELS.

50+ Social Networks Essays Topics, Titles & Examples In English FREE

by. Tae-Hyung Pyo. A thesis submitted in partial fulfillment.

Three essays on social networks

of the requirements for the Doctor of. I show that networks increase wages and mobility of high-productivity experienced workers; however, networks discourage workers from accepting jobs outside their job-contact network, because of adverse selection.

The third essay in this dissertation examines the importance of social networks in labor markets when work is produced jointly.

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