Bloomberg London Mayor Sadiq Khan pledged to stop buying double-decker buses that run purely on diesel from 2018, as part of his drive to clean up the capital’s toxic air. In addition, all new single-deck buses will be zero-emission, Khan’s office said in an e-mailed statement on Wednesday. The mayor also unveiled the world’s first double-deck hydrogen-fueled bus, manufactured by …

  Bloomberg Personal spending increased at a more moderate pace in October after the biggest gain in five months, while faster income growth signaled demand will be sustained. Purchases rose 0.3 percent after a 0.7 percent September advance that was stronger than first estimated, Commerce Department figures showed on Wednesday. The median forecast in a Bloomberg survey called for a …

  Los Angeles / AFP Amazon.com Inc. is developing a premium Echo-like speaker with a screen, a sign the world’s largest online retailer is trying to capitalize on the surprise success of its voice-controlled home gadgets and fend off competition from Google and Apple Inc. The new device will have a touchscreen measuring about seven inches, a major departure from …