By Joe Bavier
ABIDJAN (Reuters) - The European Union should require companies operating in Africa to disclose the taxes they pay there more transparently, to ensure they contribute fairly to government revenues, French economist Thomas Piketty said on Thursday.
Africa's fast-growing economies are attracting the attention of foreign investors looking for new markets, particularly as developed nations have seen growth slow.
But development in Africa remains hobbled by some of the world's lowest rates of tax collection, said Piketty, who shot to fame last year with the publication of his book on wealth and inequality, "Capital in the Twenty-First Century".
He said the biggest international companies, which often negotiate preferential tax deals with African governments, should be paying at least as much tax as small- and medium-sized companies, most of which are locally owned.
"As we know, this is not always the case in Europe or the U.S., and there are good reasons to believe in Africa it is even worse, partly because of western companies," he told Reuters during an interview in Ivory Coast, at a forum organised by the French newspaper Le Monde.
Civil society initiatives, including Publish What You Pay for the extractive industries, have pushed multinational companies for more transparency in their dealings with developing countries. However, Piketty said this must be taken a step further.
"I think that it is important that the European Union enacts legislation," he said. "We give lessons to African countries all the time about corruption, but in the end we're not always contributing to things going in the right direction."
The sub-Saharan African countries, among the world's poorest, generally collect taxes equivalent to around 10 to 15 percent of GDP, he said. And some have seen revenues decline as trade liberalisation has led to decreased earnings from customs tariffs.
"You have no examples of countries that have become rich with 10 percent or even 20 percent of GDP in tax revenue," Piketty said.
African countries should aim to gradually raise tax revenues to 30 to 50 percent of GDP, the levels typical in Europe, he said.
While European legislation could help, African governments must also play a role by reforming how they collect taxes on personal income, among other measures.
"Nobody really trusts the system very much because there is very little transparency with the data that is available. And I think if you want to improve the system, you need to be transparent about what's working and what's not working."