[Haskell-cafe] implementing python-style dictionary in Haskell

Jason Dusek jason.dusek at gmail.com
Sat Nov 22 16:20:58 EST 2008

Ryan Ingram <ryani.spam at gmail.com> wrote:
> ...persistent data structures tend to have much worse constant
> factors and those factors translate to a general 2x-3x
> slowdown.

  Can you explain why that is, or provide a citation for it?
  It's not something I've found easy to Google.


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