Software Efficient

The consequences of human workers becoming just another piece in the long chain of an algorithm optimized for efficiency above all else

In Brooklyn, Sandianna Irvine often works “on call” hours at Ashley Stewart, a plus-size clothing store, rushing to make arrangements for her 5-year-old daughter if the store needs her. Before Martha Cadenas was promoted to manager at a Walmart in Apple Valley, Minn., she had to work any time the store needed; her mother “ended up having to move in with me,” she said, because of the unpredictable hours. Maria Trisler is often dismissed early from her shifts at a McDonald’s in Peoria, Ill., when the computers say sales are slow. The same sometimes happens to Ms. Navarro at Starbucks.