Singapore, Malaysia and Australia, in that order, have been ranked the most attractive markets in Asia for infrastructure investment in the Dutch-based Arcadis NV company’s annual global index. The comparison of 41 countries ranks their attractiveness to infrastructure investors on the basis of such matters as ease of doing business, tax rates, gross domestic product per capita, government policies and the quality of existing infrastructure. Singapore also topped the global index with Qatar second, the United Arab Emirates third and Canada fourth, down one spot from last year. Malaysia is seventh and Australia ninth.