Message-ID: <DUB105-W47473BD4BE98C4D8AEB6C6B6210@phx.gbl>
Date: 2013-01-03T16:19:23Z
From: matteo ognibene
Subject: plm random effect: the estimated variance of the individual effect is negative
In-Reply-To: <DUB105-W4934C48C713500BA3FAF6CB63E0@phx.gbl>
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