The industrial park of the Ak-Chin native American tribe, based in southern Arizona, provides a low-tax destination with a unique set of attributes thanks to its location within tribal lands. Karen E Thuermer reports

Negotiations are under way regarding the future of the North American Free Trade Agreement, and the US, Canada and Mexico are being forced to take a hard look at their relative bargaining positions. Philippa Maister reports.

The Colombian city of Medellín was once considered the murder capital of the world, but is now held up as a shining example of infrastructure investment and good governance. Mayor Federico Gutierrez tells Natasha Turak about the progress that has been made and the challenges that remain. 

Falling oil prices are making Colombia’s shrinking reserves less commercially viable. The Office of the Comptroller General fears the country could lose its oil independence by 2021, and the government is increasing efforts to reactivate the investment cycle in the sector through new incentives and regulation. Jacopo Dettoni reports.

Looking for a location for its R&D operations, Tokyo-based aluminium casting specialist Sakae Casting found eastern Idaho’s enthusiasm and academic structure – discovered in part due to a sister city relationship – a perfect fit for its first US venture. Courtney Fingar reports.

Venezuelan president Nicolás Maduro’s referendum aimed at writing a new constitution has led to fears the country is heading towards dictatorship. foreign investors – already wary after years of political instability – are beginning to back even further away. Michael Deibert reports