One study with 156 online participants looked for mediating factors. This showed that mindfulness meditation resulted in less focus on the past, future, and negative effects.

What more, members made faster choices by cutting losses in the financial stock market. It is our usual tendency to continue losing because of previous investing.

Hafenbrack AC, Kinias Z, & Barsade SG (2013). Debiasing the Mind Through Meditation: Mindfulness and the Sunk-Cost Bias. Psychological science, 2014 Feb;25(2):369-76.