* Opposition accused Mahama of rigging poll
* Observers said voting was free and fair
* Mahama promises unity, development
By Kwasi Kpodo
ACCRA, Jan 7 Ghana's opposition boycotted the
inauguration of President John Dramani Mahama on Monday,
ignoring his appeals to end a dispute over last month's election
in the West African state seen as a model democracy in the
Mahama, who narrowly defeated his rival Nana Akufo-Addo in a
Dec. 7 vote, pledged to focus on development and unite
"There is a tremendous amount of work that still needs to be
done. More jobs must be created. More roads must be built,"
Mahama, dressed all in white, told cheering crowds in the
Ghana became Africa's newest oil exporter in 2010 with the
startup of Tullow Oil's offshore Jubilee field, propelling
economic growth to 14.4 percent in 2011.
That rise has not been reflected in average incomes in the
cocoa and gold exporter.
Ajufo-Addo's opposition New Patriotic Party (NPP) accused
Mahama - a former vice president who took office in July after
the death of President John Atta Mills - of rigging the Dec. 7
The NPP said it was pushing ahead with a legal challenge to
the election results.
"We have filed an action at the Supreme Court seeking to
overturn the declaration of results so we don't want to be part
of any event which is based on those results," said Nana Akomea,
the party's director of communication.
International observers said the election was free and fair
despite delays and technical problems that forced voting into a
Mahama won the ballot with 50.7 percent of the vote to
Akufo-Addo's 47.7 percent, just enough to avoid a second round.
Former-president John Kufuor, an NPP member, did attend the
ceremony, defying the boycott and a group of young party members
who gathered outside his house to persuade him not to go.
South African President Jacob Zuma and Nigeria's Goodluck
Jonathan joined other African leaders at the ceremony in the
seafront Independence Square.
Earlier, a new parliament dominated by the ruling party took
office and elected its speaker and deputies.
Ghana is one of Africa's fastest growing economies and has
maintained three decades of peace, making it a favourite among
international investors and an anomaly in a region better known
for revolts and civil wars.
(Reporting by Kwasi Kpodo; Editing by Daniel Flynn and Andrew