To obtain comprehensive materials with both high temperature coefficient of resistivity (TCR) and magnetoresistance (MR) at low magnetic fields, polycrystalline La0.72Ca0.28Mn1− x Cr x O3 (x = 0, 0.02, 0.04, 0.06) ceramics were prepared herein by the sol–gel method. The electronic...

While it is generally maintained that earnings management can occur to inform as well as to mislead, evidence that earnings management informs has been scarce, and evidence that credibility increases with signal costliness inexistent. We provide evidence that firms use discretion over financial...