Original sentence: Björgólfur Thor Björgólfsson (born 19 March 1967 in Reykjavík, Iceland), known internationally as Thor Bjorgolfsson is an Icelandic businessman and entrepreneur, and former chairman of the financial firm Straumur-Burðarás and chairman of investment firm Novator Partners.He is heir to a long lasting family legacy in Icelandic business and politics; His great-grandfather was the legendary Danish-born Icelandic entrepreneur Thor Jensen, who all but introduced the term "big business" to the country in the early years of the 20th Century.However, following the 2007-2009 financial crisis, Björgólfur's net worth declined to $1 billion (as of march 2009)
Edited sentence: Björgólfur Thor Björgólfsson (born 19 March 1967 in Reykjavík, Iceland), known internationally as Thor Bjorgolfsson, is an Icelandic businessman and entrepreneur, and former chairman of the financial firm Straumur-Burðarás and chairman of investment firm Novator Partners.He is heir to a long lasting family legacy in Icelandic business and politics; his great-grandfather was the legendary Danish-born Icelandic entrepreneur Thor Jensen, who all but introduced the term "big business" to the country in the early years of the 20th century.However, following the financial crisis of 2007–2009, Björgólfur's net worth declined to $1 billion (as of March 2009)