10 studies examined the idea that individuals transmit more information, and/or information with higher fidelity, to a superior or work partner when they trust that individual. Of these, six studies found a significant effect of trust on various operationalizations of information sharing (Boss 1978, Mellinger 1959, O’Reilly 1978, O’Reilly and Roberts 1974, Smith and Barclay 1997, Zand 1972). But, four studies did not find a significant effect (De Dreu et al. 1998, Dirks 1999, Kimmel et al. 1980, Roberts and O’Reilly 1974).