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Essays on Networks and Migration.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Essays on Networks and Migration./
作者:	Johnston, Drew.
面頁冊數:	1 online resource (265 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-12, Section: A.
Contained By:	Dissertations Abstracts International85-12A.
標題:	Political science. -
電子資源:	click for full text (PQDT)
ISBN:	9798382783444

Essays on Networks and Migration.
Johnston, Drew.

Essays on Networks and Migration. - 1 online resource (265 pages)

Source: Dissertations Abstracts International, Volume: 85-12, Section: A.

Thesis (Ph.D.)--Harvard University, 2024.

Includes bibliographical references

In the first chapter, we use de-identified data from Facebook to study the nature of peer effects in the market for cell phones. To identify peer effects, we exploit variation in friends' new phone acquisitions resulting from random phone losses. A new phone purchase by a friend has a large and persistent effect on an individual's own demand for phones of the same brand. While peer effects increase the overall demand for phones, a friend's purchase of a particular phone brand can reduce an individual's own demand for phones from competing brands, in particular if they are running on a different operating system.In the second chapter, we show how social ties affect beliefs and behaviors in high-stakes settings. During the Covid-19 pandemic, individuals with friends in regions facing severe outbreaks reduced their mobility more than their demographically similar neighbors with friends in less affected areas. To explore why social connections shape behaviors, we show that individuals with higher friend exposure to Covid-19 are more supportive of social distancing measures and less likely to advocate to reopen the economy. We conclude that friends influence individuals' behaviors in part through their beliefs, even when there is abundant information from experts.In the third chapter, we study the social integration of Syrian migrants in Germany. We decompose the significant spatial variation in migrants' integration levels into the rate at which Germans befriend their neighbors in general and the particular rate at which they befriend Syrian migrants versus other Germans. We follow the friending behavior of Germans that move across locations to show that both forces are more affected by local institutions and policies than persistent individual characteristics or preferences of local natives. We explore the characteristics of places with higher integration levels, and show that integration courses causally affect place-specific equilibrium integration levels by shifting the rate at which Germans befriend Syrians.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798382783444Subjects--Topical Terms:

558774
Political science.
Subjects--Index Terms:

MicroeconomicsIndex Terms--Genre/Form:

554714
Electronic books.

Essays on Networks and Migration.
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500 $a Source: Dissertations Abstracts International, Volume: 85-12, Section: A.
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502 $a Thesis (Ph.D.)--Harvard University, 2024.
504 $a Includes bibliographical references
520 $a In the first chapter, we use de-identified data from Facebook to study the nature of peer effects in the market for cell phones. To identify peer effects, we exploit variation in friends' new phone acquisitions resulting from random phone losses. A new phone purchase by a friend has a large and persistent effect on an individual's own demand for phones of the same brand. While peer effects increase the overall demand for phones, a friend's purchase of a particular phone brand can reduce an individual's own demand for phones from competing brands, in particular if they are running on a different operating system.In the second chapter, we show how social ties affect beliefs and behaviors in high-stakes settings. During the Covid-19 pandemic, individuals with friends in regions facing severe outbreaks reduced their mobility more than their demographically similar neighbors with friends in less affected areas. To explore why social connections shape behaviors, we show that individuals with higher friend exposure to Covid-19 are more supportive of social distancing measures and less likely to advocate to reopen the economy. We conclude that friends influence individuals' behaviors in part through their beliefs, even when there is abundant information from experts.In the third chapter, we study the social integration of Syrian migrants in Germany. We decompose the significant spatial variation in migrants' integration levels into the rate at which Germans befriend their neighbors in general and the particular rate at which they befriend Syrian migrants versus other Germans. We follow the friending behavior of Germans that move across locations to show that both forces are more affected by local institutions and policies than persistent individual characteristics or preferences of local natives. We explore the characteristics of places with higher integration levels, and show that integration courses causally affect place-specific equilibrium integration levels by shifting the rate at which Germans befriend Syrians.
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653 $a Social distancing
653 $a Syrians
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