Vested in support: Applying vested interest theory to increase support for close others with depression.

Guided by vested interest theory, we assessed whether a lack of stake explains the discrepancy between people having positive attitudes toward their loved one's recovery from depression and the provision of support. We further investigated whether increasing the perceived personal consequences of providing support (i.e. stake) increased willingness to provide support. A stake-boosting message had no direct, but significant indirect effects on willingness to provide support when compared to a control and comparison condition. In summary, increasing stake in a loved one's recovery indirectly increases intentions to provide support.