The History column of the EMC Magazine contains three primary areas in this issue. first area interest is 50-25-10 Year sAgo article, secondarea are publis hed article from an Society Founder and Past-President 1970, third highlights C63 Committee on EMC.

Article history: Received 1 November 2009 Available online 3 March 2011 JEL classification: D44 C63 C72 D82

Article history: Received 6 February 2008 Accepted 14 May 2008 Available online 20 May 2008 JEL classification: C63 G11 G31 G39

In a previous essay, we developed a simple (in)efficiency measure for matrix games. We now address the difficulties encountered in assessing the usefulness and accuracy of such a measure. JEL Classifications: C63, C72, D61

In this paper, we describe how to solve Model A (finite number of countries complete markets) of the JEDC project by using a simulation-based Parameterized Expectations Algorithm (PEA). JEL classification : C6; C63; C68; C88

This paper introduces a new and computationally inexpensive method to test for uniqueness of equilibrium in exchange economies. ( 1999 Published by Elsevier Science B.V. All rights reserved. JEL classixcation: C63; C68; D58

A method is described for using the cross-linking reagent 4'-(hydroxy-methyl)-4,5',8-trimethylpsoralen (HMT) to map base paired regions and higher-order structure within RNA molecules. Applying this method to yeast tRNAPhe, we have specifically identified cross-links within the acceptor stem between U6 X U68, in the D-stem between C11 X C25, and in the T psi-stem between U50 X C63 and U52 X C63...