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[[Game theory]] becomes an important considering in a crowded primary, such as the Republican nominating process for the [[2016 presidential election]].  A total of 17 candidates (as of August 2015) vie for support, which requires considerations of game theory before criticizing rivals.

[[Game theory]] becomes an important consideration in a crowded primary, such as the Republican nominating process for the [[2016 presidential election]].  A total of 17 candidates (as of August 2015) vie for support, which requires considerations of game theory before criticizing rivals.

Only four of the 17 candidates have been initially willing to criticize [[Donald Trump]], lest they lost potential support among supporters of Trump.  Those four candidates are [[Rand Paul]], [[Rick Perry]], [[Carly Fiorina]], and [[Lindsey Graham]].<ref>http://www.cbsnews.com/news/donald-trump-trades-barbs-with-carly-fiorina/</ref>  The first two perhaps hope to take support away from Donald Trump as a rival; the latter two perhaps hope to gain support from those who dislike Trump.

As of September 2015, only four of the 17 candidates have been willing to criticize [[Donald Trump]], lest they lose potential support among supporters of Trump.  Those four candidates are [[Rand Paul]], [[Rick Perry]], [[Carly Fiorina]], and [[Lindsey Graham]].<ref>http://www.cbsnews.com/news/donald-trump-trades-barbs-with-carly-fiorina/</ref>  The first two perhaps hope to take support away from Donald Trump as a rival; the latter two perhaps hope to gain support from those who dislike Trump.

== Who are rivals among the 16 candidates? ==

== Who are rivals among the 16 candidates? ==