---
_id: '29313'
abstract:
- lang: eng
  text: 'Employing a unique sample of 2,849 tariﬀ imposition announcements by and
    against the United States (U.S.) over the period from 2018 to 2019, this study
    analyzes the impact of recent tariﬀ announcements on share prices from 859 U.S.
    companies. We provide evidence for negative (cumulative) average abnormal stock
    returns due to tariﬀ announcements during a symmetric three-day event window.
    We suggest that stock market investors expect adverse impacts of tariﬀ impositions,
    e.g. a decrease in the companies’ future cash ﬂows and a threat of retaliation.
    The negative wealth eﬀects are observed irrespective of whether the Trump administration
    announces safeguard tariﬀs to protect domestic ﬁrms or a retaliation is declared
    by foreign countries. Moreover, building several subsamples, we ﬁnd that the adverse
    impact is mostly driven by announcements involving China and is associated with
    a variety of sector, tariﬀ, trade and ﬁrm characteristics. '
author:
- first_name: Sascha Tobias
  full_name: Wengerek, Sascha Tobias
  last_name: Wengerek
- first_name: André
  full_name: Uhde, André
  id: '36049'
  last_name: Uhde
  orcid: https://orcid.org/0000-0002-8058-8857
citation:
  ama: Wengerek ST, Uhde A. <i>Share Price Reactions to Tariﬀ Imposition Announcements
    in the Trump Era – an Event Study of the Trade Conﬂict</i>.; 2021.
  apa: Wengerek, S. T., &#38; Uhde, A. (2021). <i>Share Price Reactions to Tariﬀ Imposition
    Announcements in the Trump Era – an Event Study of the Trade Conﬂict</i>.
  bibtex: '@book{Wengerek_Uhde_2021, title={Share Price Reactions to Tariﬀ Imposition
    Announcements in the Trump Era – an Event Study of the Trade Conﬂict}, author={Wengerek,
    Sascha Tobias and Uhde, André}, year={2021} }'
  chicago: Wengerek, Sascha Tobias, and André Uhde. <i>Share Price Reactions to Tariﬀ
    Imposition Announcements in the Trump Era – an Event Study of the Trade Conﬂict</i>,
    2021.
  ieee: S. T. Wengerek and A. Uhde, <i>Share Price Reactions to Tariﬀ Imposition Announcements
    in the Trump Era – an Event Study of the Trade Conﬂict</i>. 2021.
  mla: Wengerek, Sascha Tobias, and André Uhde. <i>Share Price Reactions to Tariﬀ
    Imposition Announcements in the Trump Era – an Event Study of the Trade Conﬂict</i>.
    2021.
  short: S.T. Wengerek, A. Uhde, Share Price Reactions to Tariﬀ Imposition Announcements
    in the Trump Era – an Event Study of the Trade Conﬂict, 2021.
date_created: 2022-01-13T11:06:25Z
date_updated: 2024-04-17T13:35:20Z
department:
- _id: '186'
- _id: '19'
jel:
- F14
- F18
- F23
- F51
keyword:
- event study
- international relations
- protectionism
- strategic trade policy
- tariﬀs
- trade conﬂict
language:
- iso: eng
status: public
title: Share Price Reactions to Tariﬀ Imposition Announcements in the Trump Era –
  an Event Study of the Trade Conﬂict
type: working_paper
user_id: '21810'
year: '2021'
...
---
_id: '17703'
abstract:
- lang: eng
  text: Employing a unique sample of 2,849 tariff imposition announcements by and
    against the United States (U.S.) over the period from 2018 to 2019, this study
    analyzes the impact of recent tariff announcements on share prices from 859 U.S.
    companies. We provide evidence for negative (cumulative) average abnormal stock
    returns due to tariff announcements during a symmetric three-day event window.
    We suggest that stock market investors expect adverse impacts of tariff impositions,
    e.g. a decrease in the companies' future cash flows and a threat of retaliation.
    The negative wealth effects are observed irrespective of whether the Trump administration
    announces safeguard tariffs to protect domestic firms or a retaliation is declared
    by foreign countries. Moreover, building several subsamples, we find that the
    adverse impact is mostly driven by announcements involving China and is associated
    with a variety of sector, tariff, trade and firm characteristics.
author:
- first_name: Sascha Tobias
  full_name: Wengerek, Sascha Tobias
  id: '48837'
  last_name: Wengerek
  orcid: 0000-0002-7820-3903
citation:
  ama: Wengerek ST. <i>Share Price Reactions to Tariff Imposition Announcements in
    the Trump Era - An Event Study of the Trade Conflict</i>.; 2020.
  apa: Wengerek, S. T. (2020). <i>Share price reactions to tariff imposition announcements
    in the Trump era - An event study of the trade conflict</i>.
  bibtex: '@book{Wengerek_2020, title={Share price reactions to tariff imposition
    announcements in the Trump era - An event study of the trade conflict}, author={Wengerek,
    Sascha Tobias}, year={2020} }'
  chicago: Wengerek, Sascha Tobias. <i>Share Price Reactions to Tariff Imposition
    Announcements in the Trump Era - An Event Study of the Trade Conflict</i>, 2020.
  ieee: S. T. Wengerek, <i>Share price reactions to tariff imposition announcements
    in the Trump era - An event study of the trade conflict</i>. 2020.
  mla: Wengerek, Sascha Tobias. <i>Share Price Reactions to Tariff Imposition Announcements
    in the Trump Era - An Event Study of the Trade Conflict</i>. 2020.
  short: S.T. Wengerek, Share Price Reactions to Tariff Imposition Announcements in
    the Trump Era - An Event Study of the Trade Conflict, 2020.
date_created: 2020-08-07T09:34:29Z
date_updated: 2022-01-06T06:53:17Z
department:
- _id: '186'
jel:
- F14
- F18
- F23
- F51
keyword:
- event study
- international relations
- protectionism
- strategic trade policy
- tariffs
- trade conflict
language:
- iso: eng
main_file_link:
- url: https://ideas.repec.org/p/pdn/dispap/59.html
page: '63'
status: public
title: Share price reactions to tariff imposition announcements in the Trump era -
  An event study of the trade conflict
type: working_paper
user_id: '48837'
year: '2020'
...
---
_id: '36004'
abstract:
- lang: eng
  text: 'Employing a unique sample of 2,849 tariff imposition announcements by and
    against the United States (U.S.) over the period from 2018 to 2019, this study
    analyzes the impact of recent tariff announcements on share prices from 859 U.S.
    companies. We provide evidence for negative (cumulative) average abnormal stock
    returns due to tariff announcements during a symmetric three-day event window.
    We suggest that stock market investors expect adverse impacts of tariff impositions,
    e.g. a decrease in the companies'' future cash flows and a threat of retaliation.
    The negative wealth effects are observed irrespective of whether the Trump administration
    announces safeguard tariffs to protect domestic firms or a retaliation is declared
    by foreign countries. Moreover, building several subsamples, we find that the
    adverse impact is mostly driven by announcements involving China and is associated
    with a variety of sector, tariff, trade and firm characteristics. '
author:
- first_name: Sascha Tobias
  full_name: Wengerek, Sascha Tobias
  last_name: Wengerek
- first_name: André
  full_name: Uhde, André
  id: '36049'
  last_name: Uhde
citation:
  ama: Wengerek ST, Uhde A. <i>Share Price Reactions to Tariff Imposition Announcements
    in the Trump Era – An Event Study of the Trade Conflict</i>. Paderborn University;
    2019.
  apa: Wengerek, S. T., &#38; Uhde, A. (2019). <i>Share price reactions to tariff
    imposition announcements in the Trump era – An event study of the trade conflict</i>.
    Paderborn University.
  bibtex: '@book{Wengerek_Uhde_2019, title={Share price reactions to tariff imposition
    announcements in the Trump era – An event study of the trade conflict}, publisher={Paderborn
    University}, author={Wengerek, Sascha Tobias and Uhde, André}, year={2019} }'
  chicago: Wengerek, Sascha Tobias, and André Uhde. <i>Share Price Reactions to Tariff
    Imposition Announcements in the Trump Era – An Event Study of the Trade Conflict</i>.
    Paderborn University, 2019.
  ieee: S. T. Wengerek and A. Uhde, <i>Share price reactions to tariff imposition
    announcements in the Trump era – An event study of the trade conflict</i>. Paderborn
    University, 2019.
  mla: Wengerek, Sascha Tobias, and André Uhde. <i>Share Price Reactions to Tariff
    Imposition Announcements in the Trump Era – An Event Study of the Trade Conflict</i>.
    Paderborn University, 2019.
  short: S.T. Wengerek, A. Uhde, Share Price Reactions to Tariff Imposition Announcements
    in the Trump Era – An Event Study of the Trade Conflict, Paderborn University,
    2019.
date_created: 2023-01-11T10:57:04Z
date_updated: 2023-01-11T11:05:30Z
department:
- _id: '186'
- _id: '188'
jel:
- F14
- F18
- F23
- F51
keyword:
- event study
- international relations
- protectionism
- strategic trade policy
- tariffs
- trade conflict
language:
- iso: eng
publication_status: published
publisher: Paderborn University
status: public
title: Share price reactions to tariff imposition announcements in the Trump era –
  An event study of the trade conflict
type: working_paper
user_id: '21810'
year: '2019'
...
---
_id: '8836'
abstract:
- lang: eng
  text: While Islamic State is the most present example, it is a fact that in many
    places around the globe, throughout history initially small groups have tried
    to challenge and destabilize or even overthrow governments by means of terrorist
    and guerrilla strategies. Therefore, we answer two questions. Why does a small
    group of insurgents believe it can overthrow the government by turning violent,
    even if the government is clearly superior? And how does a conflict develop into
    terrorism, a guerilla war, or a major conventional civil war, or is resolved peacefully?
    We develop a formal model for rebels and government and derive optimal choices.
    Further, we focus on three elements as important ingredients of a "destabilization
    war". All three of these - large random events, time preference (which we relate
    to ideology), and choice of duration of fight - are rarely considered in formal
    conflict theory. We can answer the above two questions using game theory analysis.
    First, insurgents rise up because they hope to destabilize through permanent challenging
    attacks. In this context, large randomness is an important ally of rebels. While
    each individual attack may have a low impact, at some point a large random event
    could lead to success. Hence, the duration of activities is a constitutive element
    of this kind of armed conflict. Patience (low time preference), which may reflect
    rebels' degree of ideological motivation, is crucial. Second, the mode of warfare
    or the conflict resolutions that develop are generally path-dependent and conditioned
    on the full set of options (including compromise). Various conditions (level of
    funding, ease of recruitment, access to weapons) influence different modes of
    warfare or a peaceful compromise in a complex way.
author:
- first_name: Thomas
  full_name: Gries, Thomas
  id: '186'
  last_name: Gries
- first_name: Claus-Jochen
  full_name: Haake, Claus-Jochen
  id: '20801'
  last_name: Haake
citation:
  ama: Gries T, Haake C-J. <i>An Economic Theory of “Destabilization War.”</i> Vol
    95.; 2016.
  apa: Gries, T., &#38; Haake, C.-J. (2016). <i>An Economic Theory of “Destabilization
    War”</i> (Vol. 95).
  bibtex: '@book{Gries_Haake_2016, series={Working Papers CIE}, title={An Economic
    Theory of “Destabilization War”}, volume={95}, author={Gries, Thomas and Haake,
    Claus-Jochen}, year={2016}, collection={Working Papers CIE} }'
  chicago: Gries, Thomas, and Claus-Jochen Haake. <i>An Economic Theory of “Destabilization
    War.”</i> Vol. 95. Working Papers CIE, 2016.
  ieee: T. Gries and C.-J. Haake, <i>An Economic Theory of “Destabilization War,”</i>
    vol. 95. 2016.
  mla: Gries, Thomas, and Claus-Jochen Haake. <i>An Economic Theory of “Destabilization
    War.”</i> Vol. 95, 2016.
  short: T. Gries, C.-J. Haake, An Economic Theory of “Destabilization War,” 2016.
date_created: 2019-04-08T06:45:02Z
date_updated: 2022-01-06T07:04:03Z
ddc:
- '040'
department:
- _id: '205'
- _id: '475'
file:
- access_level: closed
  content_type: application/pdf
  creator: cjhaake
  date_created: 2019-04-08T06:49:16Z
  date_updated: 2019-04-08T06:49:16Z
  file_id: '8838'
  file_name: WP - An Economic Theory of ’Destabilization War'.pdf
  file_size: 516125
  relation: main_file
  success: 1
file_date_updated: 2019-04-08T06:49:16Z
has_accepted_license: '1'
intvolume: '        95'
jel:
- H56
- O10
- D84
- C72
- D74
keyword:
- terrorism
- civil war
- conflict duration
- game theory
- stochastic process
- ideology
language:
- iso: eng
series_title: Working Papers CIE
status: public
title: An Economic Theory of 'Destabilization War'
type: working_paper
user_id: '20801'
volume: 95
year: '2016'
...
---
_id: '32520'
abstract:
- lang: eng
  text: "In order to investigate the significance of\r\nadults’ relationship to their
    parents, this relationship is\r\ncompared to relationships with siblings, friends,
    partners,\r\nand children. German adults (N = 902) between the ages\r\nof 20 and
    86 completed the Network of Relationships\r\nInventory (Furman and Buhrmester
    1992). Participants felt\r\nmost supported by their partners, followed by their
    children, mothers, friends, fathers, and siblings. Conflicts were\r\nmore frequently
    found within the family (especially with\r\nthe partner, followed by children,
    mothers, fathers, and\r\nsiblings) than with friends. Except for partner relationships,\r\nboth
    conflict and support decreased with age. Concerning\r\nrelative power within their
    relationships, partners, mothers,\r\nand siblings are seen as equals, friends
    and especially\r\nfathers are perceived as more powerful, and children as\r\nless,
    yet increasingly powerful. Regarding all relationship\r\ntypes and relationship
    qualities, the differences between\r\nwomen and men were small."
author:
- first_name: Heike M.
  full_name: Buhl, Heike M.
  id: '27152'
  last_name: Buhl
citation:
  ama: 'Buhl HM. My Mother: My Best Friend? Adults’ Relationships with Significant
    Others Across the Lifespan. <i>Journal of Adult Development</i>. 2009;16(4):239-249.
    doi:<a href="https://doi.org/10.1007/s10804-009-9070-2">10.1007/s10804-009-9070-2</a>'
  apa: 'Buhl, H. M. (2009). My Mother: My Best Friend? Adults’ Relationships with
    Significant Others Across the Lifespan. <i>Journal of Adult Development</i>, <i>16</i>(4),
    239–249. <a href="https://doi.org/10.1007/s10804-009-9070-2">https://doi.org/10.1007/s10804-009-9070-2</a>'
  bibtex: '@article{Buhl_2009, title={My Mother: My Best Friend? Adults’ Relationships
    with Significant Others Across the Lifespan}, volume={16}, DOI={<a href="https://doi.org/10.1007/s10804-009-9070-2">10.1007/s10804-009-9070-2</a>},
    number={4}, journal={Journal of Adult Development}, publisher={Springer Science
    and Business Media LLC}, author={Buhl, Heike M.}, year={2009}, pages={239–249}
    }'
  chicago: 'Buhl, Heike M. “My Mother: My Best Friend? Adults’ Relationships with
    Significant Others Across the Lifespan.” <i>Journal of Adult Development</i> 16,
    no. 4 (2009): 239–49. <a href="https://doi.org/10.1007/s10804-009-9070-2">https://doi.org/10.1007/s10804-009-9070-2</a>.'
  ieee: 'H. M. Buhl, “My Mother: My Best Friend? Adults’ Relationships with Significant
    Others Across the Lifespan,” <i>Journal of Adult Development</i>, vol. 16, no.
    4, pp. 239–249, 2009, doi: <a href="https://doi.org/10.1007/s10804-009-9070-2">10.1007/s10804-009-9070-2</a>.'
  mla: 'Buhl, Heike M. “My Mother: My Best Friend? Adults’ Relationships with Significant
    Others Across the Lifespan.” <i>Journal of Adult Development</i>, vol. 16, no.
    4, Springer Science and Business Media LLC, 2009, pp. 239–49, doi:<a href="https://doi.org/10.1007/s10804-009-9070-2">10.1007/s10804-009-9070-2</a>.'
  short: H.M. Buhl, Journal of Adult Development 16 (2009) 239–249.
date_created: 2022-08-02T23:59:24Z
date_updated: 2022-08-29T04:46:47Z
department:
- _id: '427'
doi: 10.1007/s10804-009-9070-2
extern: '1'
intvolume: '        16'
issue: '4'
keyword:
- Family
- Friends
- "\x01 Support"
- "\x01 Conflict"
- "\x01 Power"
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/content/pdf/10.1007/s10804-009-9070-2.pdf
oa: '1'
page: 239-249
publication: Journal of Adult Development
publication_identifier:
  issn:
  - 1068-0667
  - 1573-3440
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: 'My Mother: My Best Friend? Adults’ Relationships with Significant Others Across
  the Lifespan'
type: journal_article
user_id: '42165'
volume: 16
year: '2009'
...
