SAN NARCISO, Calif. (Bennington Vale Evening Transcript) -- The success of Uber, the app-based personal transportation service, has renewed the demand for independent contractors. It’s also ushered in an emerging freelance marketplace called the “gig economy.” While the model may be great for business, labor advocates say it’s horrendous for workers and the wider economy. Pushing employees to sell their services independently weakens their security, cripples their long-term financial stability and depletes their purchasing power. Employees are, after all, consumers. But with the announcement Wednesday of an app-based call service for prostitutes -- the result of a partnership between Google Maps and Unter, a heavily funded startup by a conglomerate of savvy pimps -- labor regulators worry that the rise of this new “trick economy” will wreak further damage on millions of housewives and moonlighters who are seeking part-time opportunities to strengthen their household incomes.