Peter Praet explains why the European Central Bank intervened in 2014 and what it plans to do next year.
Kemal Derviş proposes that governments take advantage of falling oil prices to introduce an explicit carbon tax.
Gordon Brown argues that the world cannot stand by as schools are attacked and students are murdered.
Shahid Javed Burki calls the Taliban's slaughter of schoolchildren a tipping point in the fight against extremism.
Lucy P. Marcus urges ethically challenged technology companies to live the examined life.
Barry Eichengreen takes on those who object to massive quantitative easing by the European Central Bank.
Bjørn Lomborg asks how much money the world should spend on collecting and analyzing development data.
Adebisi Alimi worries that gay men in the developing world may fear accessing a new anti-HIV therapy.
Muhammad Hamid Zaman sees two crucial lessons to be learned from the current outbreak.
Gordon Brown explains why reopening West African schools is the best way to stop the spread of the virus.
Anne-Marie Slaughter identifies inadequate childcare as the number one threat facing the United States.
Mike McGinn calls on investors to follow Seattle's lead and divest from fossil-fuel companies.
Michael Jacobs calls the agreement a game changer, because poorer countries' obligations are no longer voluntary.
Brigitte Miksa asks what it means when, on New Year's Eve this year, the last baby boomer turns 50.
Ian Buruma warns against dismissing rising anxiety about immigration as bigotry.