Changes

*high [[unemployment]], or low overall employment that can occur even if reported [[unemployment]] is small.  This is prevailing in 2017.

*high [[unemployment]], or low overall employment that can occur even if reported [[unemployment]] is small.  This is prevailing in 2017.

*extreme price-cutting by sellers, which can be encouraged by technological factors such as the [[internet]] or be due to intense competition such as [[price war]]s between [[Wal-Mart]] and [[Amazon]], or between [[Apple]] and [[Google]] (now owned by Alphabet).

*extreme price-cutting by sellers, which can be encouraged by technological factors such as the [[internet]] or be due to intense competition such as [[price war]]s between [[Wal-Mart]] and [[Amazon]], or between [[Apple]] and [[Google]] (now owned by Alphabet).

*[[invention]]s that sharply increase productivity, as occurred shortly after the [[Civil War]].

*[[invention]]s that sharply and quickly increase productivity, as occurred shortly after the [[Civil War]].

*a lack of inventions combined with competition by low-wage foreign jobs can prevent real wages from increasing, which precludes inflation.

*the loss of manufacturing and other good-paying jobs, which results in less income for consumers and fierce shopping for bargains.

*the loss of manufacturing and other good-paying jobs, which results in less income for consumers and fierce shopping for bargains.