Indonesia's new president, Joko "Jokowi" Widodo, promised to make life simpler for investors by beefing up the country's threadbare infrastructure, untangling near-impenetrable regulations and sacking his ministers if they aren't up to the job.

The Elections Commission announced Tuesday that the Jakarta governor had won the hard-fought July 9 election by just over 6 percentage points, although his rival, Prabowo Subianto, plans to challenge the result in Constitutional Court.

"We need to get our economy growing. To do that we must have more investment and also deliver in terms of infrastructure," Jokowi told Reuters in an interview Saturday, given on the condition that it not be published until after he was officially named winner.