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Företagsförvärv: Abnorma avkastningseffekter på börsen vid olikheter i konjunkturläge respektive branschtillhörighet
Södertörn University College, School of Business Studies.
2010 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [sv]

I denna studie har aktieutvecklingen hos förvärvade börsnoterade företag vid budets offentliggörande studerats. Företagen som förvärvades under lågkonjunkturen år 2007-2009, och högkonjunkturen år 2001-2004 har undersökts för att se om det finns någon skillnad i aktieprisutvecklingen som skulle kunna bero på vilket tillstånd ekonomin i samhället befinner sig. Därefter utreds om det finns en skillnad beroende på vilken bransch företagen befinner sig i.

Studien förankras teoretiskt ur den effektiva marknadshypotesen där en semistark effektiv marknad antas. Denna grad av effektivitet antas vanligen för finansiella marknader och är den form som eventstudier utgår ifrån. Den undersökningsform som används i denna uppsats är en eventstudie och denna statistiska metod mäter marknadens reaktion på ny information. Den abnorma avkastningen har beräknats vilket sedan belysts genom tabeller och diagram, vilka i sin tur tolkats av en analytiker.

Studien resulterade i att företagsförvärv i lågkonjunktur har högre abnorm avkastning än uppköp som sker under högkonjunktur. Uppsatsen uppvisade även att kommunikationssektorn hade en högre abnorm avkastning än resterande branscher.

Abstract [en]

Share development of acquired companies listed at the bearer's publication has been studied. Companies acquired during the recession years 2007-2009 and the boom years 2001-2004 have been studied to see if there is any difference in the share price that would depend on what cyclical the economy in the society is. I have further investigated whether there is a difference depending on what industry the companies are active in.

The study is anchored in theory from the efficient market hypothesis in which a semi-strong efficient market is assumed. This degree of efficiency is usually assumed in financial markets and is the form that event studies adopt. The survey form used in this paper is an event study and this statistical method measures the market’s reaction to new information. The abnormal return is calculated which is then illustrated by tables and charts, which in turn is interpreted by an analyst.

The study showed that acquisitions in the recession had higher abnormal returns than purchases made during the boom. The paper also showed that the communications companies had a higher abnormal return than the remaining sectors.

Place, publisher, year, edition, pages
2010. , p. 31
Keywords [en]
Acquisition, Event Study, Abnormal returns, Market-adjusted model, Synergy
Keywords [sv]
Företagsförvärv, Eventstudie, Abnorm avkastning, Justerade marknadsmodellen
National Category
Business Administration
Identifiers
URN: urn:nbn:se:sh:diva-6595OAI: oai:DiVA.org:sh-6595DiVA, id: diva2:401735
Uppsok
Social and Behavioural Science, Law
Supervisors
Examiners
Available from: 2011-03-04 Created: 2011-03-03 Last updated: 2011-03-04Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • harvard-anglia-ruskin-university
  • apa-old-doi-prefix.csl
  • sodertorns-hogskola-harvard.csl
  • sodertorns-hogskola-oxford.csl
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
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