**[1]** A literature that studies whether models populated with agents\n",
"who learn can converge to rational expectations equilibria features\n",
"iterations on a modification of the mapping $ \\Phi $ that can be\n",
"approximated as $ \\gamma \\Phi + (1-\\gamma)I $. Here $ I $ is the\n",
"identity operator and $ \\gamma \\in (0,1) $ is a *relaxation parameter*.\n",
"See [[Marcet and Sargent, 1989](https://python.quantecon.org/zreferences.html#id190)] and [[Evans and Honkapohja, 2001](https://python.quantecon.org/zreferences.html#id162)] for statements\n",
"and applications of this approach to establish conditions under which\n",
"collections of adaptive agents who use least squares learning to converge to a\n",
"rational expectations equilibrium."
]
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