"The Internet holds great promise for helping adults form healthy and supportive romantic partnerships, and those relationships are one of the best predictors of emotional and physical health," he said.
But there are downsides to looking for love on the web, according to Reis.
The Committee does not have a fixed definition of economic activity.
It examines and compares the behavior of various measures of broad activity: real GDP measured on the product and income sides, economy-wide employment, and real income.
The chronology comprises alternating dates of peaks and troughs in economic activity.
But that doesn't seem to have affected algorithm-based sites' popularity.Affiliated: Country projects: Australia and Brazil. Regional project: Kids Online Latin America (English, Spanish, Portuguese).The NBER's Business Cycle Dating Committee maintains a chronology of the U. A recession is a period between a peak and a trough, and an expansion is a period between a trough and a peak.The scientists, whose research is slated for publication in , reviewed over 400 psychology studies and public interest surveys.In one study, they found that in a single month in 2011, nearly 25 million unique users around the world were online dating.