Bhaskar Krishnamachari

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Prompts like this sign in Coalinga, California, may get people to use less water – but paying them could be more effective. Matt McClain/The Washington Post via Getty Images

A new strategy for western states to adapt to long‑term drought: Customized water pricing

Matthew E. Kahn, USC Dornsife College of Letters, Arts and Sciences and Bhaskar Krishnamachari, University of Southern California

Even after January’s storms, California faces a water-scarce future. An economist and an engineer propose a way to test higher water prices as a conservation strategy without hurting low-income users.
A Long Island Power Authority smart meter installed at a home in Suffolk County, N.Y. John Paraskevas/Newsday RM via Getty Images

Smart meters and dynamic pricing can help consumers use electricity when it’s less costly, saving money and reducing pollution

Matthew E. Kahn, USC Dornsife College of Letters, Arts and Sciences and Bhaskar Krishnamachari, University of Southern California

Most households pay a flat rate 24/7 for electricity although the cost of generating it fluctuates through the day. Wireless technologies are changing that system.
The Wi-Fi symbol, like the technology it represents, has become ubiquitous. Smith Collection/Gado via Getty Images

How does Wi‑Fi work? An electrical engineer explains

Bhaskar Krishnamachari, University of Southern California

Wi-Fi has become a fundamental part of modern digital life, but its foundation is the same as the technology that allowed your great-grandparents to listen to their favorite radio programs.

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