To travel smart you need to know some tricks and take advantage of all these search engines that aggregate the prices of dozens of airlines. (mindthetravel.com)
The concept of core inflation — the measurement of aggregate prices excluding food and energy goods — has its origin about this time. (federalreservehistory.org)
It might not be easy to chart aggregated price quotes from hundreds of small operators, but price discovery finds a way like water finds a way to flow downhill. (coindesk.com)