By Volker PerthesBERLIN — How, and to what extent, can Europe rely on itself for its well-being, security and international influence?

By Peter M. Small and Gabrielle Fitzgerald SEATTLE — A major report recently published by the medical journal “The Lancet” finds that a tuberculosis-free world is possible.

By Stella Schaller and Alexander Carius BERLIN — The first polls are in.

By Biniam Bedasso and Neil Cole PRETORIA — Africans had good reason to be hopeful when all 193 United Nations member states adopted the Sustainable Development Goals (SDGs) in 2015.

By Juan Manuel Santos, Ernesto Zedillo and Ruth DreifussGENEVA — The market for illicit drugs represents the world’s largest criminal commodity business.

By Anne O. KruegerWASHINGTON, DC — US President Donald Trump’s “trade war” with China has been slogging along for more than a year now, and could escalate further if current talks do not lead to a deal.

By Robert Muggah, Adriana Abdenur and Ilona SzabóRIO DE JANEIRO — As the world’s largest terrestrial carbon sink, the Amazon is a key front in the fight against climate change.

By Angus DeatonPRINCETON — Rather suddenly, capitalism is visibly sick. The virus of socialism has re-emerged and is infecting the young once more. Wiser heads, who respect capitalism’s past achievements, want to save it, and have been proposing diagnoses and remedies.

By Mohamed A. El ErianNEW YORK — The economics profession took a beating after most of its leading practitioners failed to predict the 2008 global financial crisis, and it has been struggling to recover ever since.