An issue he is particularly concerned about is the "perceived corruption in terms of expenses and lack of accountability" in the European Union.

BBC: Jury Team pledges Europe openness

EIU's index measures the relative costs of doing business in 27 economies by compiling statistics relating to wages, costs for expatriate staff, air travel and subsistence, corporation taxes, perceived corruption levels, office and industrial rents, and road transport.

ECONOMIST: BUSINESS COSTS

With all the good intentions of improving the lives of Americans by eliminating the perceived source of corruption, crime and poverty, politicians outlawed the making, transporting and selling of alcohol.

FORBES: Dividend Stocks Pay Better Than Treasury Paper

Mr Zyazikov had come in for sustained criticism from opposition groups over his perceived failure to combat corruption, solve disputes with North Ossetia over refugees or reduce attacks on the security forces by Islamists.

BBC: Ingushetia profile