By tracing the trajectory of the Palestinian missile within the first few seconds of its flight, the system could calculate whether or not it was heading for a populated area and therefore whether the firing of a defensive interceptor missile was necessary.

BBC: How did Iron Dome perform over course of Gaza clash?

The FAO's Abdolreza Abbassian argues that increasing links between farming and other parts of the economy are making it more difficult for farmers to calculate in advance the profitability of any one crop, so the area they plant is tending to fluctuate more sharply from year to year.

ECONOMIST: It crept back

That way, we can calculate the average rent and asking price for an identical set of properties in a metro area , for a direct apples-to-apples comparison.

FORBES: Buying A Home Is 45% Cheaper than Renting