3Qs: As precious metals grow more precious

The value of silver soared to an all-​​time high last Thursday, and plunged dra­mat­i­cally yes­terday, illus­trating the con­stant volatility of the precious-​​metals market, which includes lus­trous com­modi­ties like gold, silver and plat­inum. Here, Kamran Dad­khah, an asso­ciate pro­fessor of econo­met­rics and macro­eco­nomics at North­eastern, who has studied the value of silver and gold in the for­eign exchange market, dis­cusses how the declining value of the dollar relates to the ever-​​shifting value of pre­cious metals and other com­modi­ties, such as oil.