Investors have gone gaga over Dropbox Inc. in its first few hours as a public company. It looks as if their enthusiasm has become overheated. Shares of Dropbox, the digital file-cabinet company, shot up about 39 percent last week from their initial sale price. That gives Dropbox a valuation of about $13 billion, including the value of shares held by ...

Facebook’s business model is pretty simple. It offers a free service to connect users with loved ones and others of similar interests. In return, it collects data about what its users do online (and, increasingly, offline). It then uses this data to sell targeted advertising. The whole thing works brilliantly. Yet the company — like so many others that profit ...

The omnibus spending bill currently before Congress includes a small but ill-conceived program that deserves to be noticed, then deleted. The EB-5 Regional Center program that gives visas to investors invites abuse and is failing to do what it’s meant to. Since 1990, foreigners who invest $1 million (or, in rural or high-unemployment areas, $500,000) in a new enterprise that ...