A frightening curve

In the past week, world leaders have started using a math­e­mat­ical term when they talk about the Ebola epi­demic in West Africa. “It’s spreading and growing expo­nen­tially,” Pres­i­dent Obama said Tuesday. […]

Why the math of the Ebola epidemic is so scary

Right now we’ve had more than 5,000 cases of Ebola and at least 2,600 people have died. Some sci­en­tists, like Alessandro Vespig­nani at North­eastern Uni­ver­sity in Boston, are taking num­bers like […]

How to cut your wireless bill down to size

Cell phone car­riers are bat­tling for your busi­ness by cut­ting prices, ditching con­tracts, and offering to pay your fee to switch. Act fast to lock in your sav­ings. If you’re unhappy […]

For some, the recession never ended

William Dickens, chairman of the eco­nomics depart­ment at Boston’s North­eastern Uni­ver­sity and a leading expert on job­less­ness, said the per­sis­tence of the long-​​​​term unem­ploy­ment problem six years after the financial […]