"The extremely high rate of IWW membership turnover during this era (estimated at 133% per decade) makes it difficult for historians to state membership totals with any certainty, as workers tended to join the IWW in large numbers for relatively short periods (e.g., during labor strikes and periods of generalized economic distress)."
The question is why union efforts do so well in some eras, and so badly in other eras. And why the workers become militant in some eras, but not other eras.
https://en.wikipedia.org/wiki/Industrial_Workers_of_the_Worl...
"The extremely high rate of IWW membership turnover during this era (estimated at 133% per decade) makes it difficult for historians to state membership totals with any certainty, as workers tended to join the IWW in large numbers for relatively short periods (e.g., during labor strikes and periods of generalized economic distress)."
The question is why union efforts do so well in some eras, and so badly in other eras. And why the workers become militant in some eras, but not other eras.