Article history: Received 1 January 2010 Available online 5 April 2012 JEL classification: D63

Article history: Received 9 April 2008 Available online 27 January 2009 JEL classification: C72

Article history: Received 14 April 2009 Available online xxxx JEL classification: C72 C73

The class of maximin actions in general decision problems is characterized. JEL classification: C70, D81.

Article history: Received 18 January 2016 Available online xxxx JEL classification: D63 D70

Article history: Received 15 June 2015 Available online 21 March 2017 JEL classification: C78 D40

Article history: Received 20 June 2007 Available online 31 July 2010 JEL classification: C70 D82

Article history: Received 19 May 2009 Available online 2 February 2011 JEL classification: C78

Article history: Accepted 14 January 2011 JEL classification: D43 J29 J69 L60

Article history: Received 17 July 2008 Available online 27 January 2009 JEL classification: C71