Sunk Cost Fallacy 

The Sunk Cost Fallacy is a cognitive bias where individuals or businesses continue a project or investment due to the amount of resources already committed, rather than objectively evaluating future outcomes. Rational decision-making should ignore sunk costs (irrecoverable past expenses) and focus solely on future benefits and costs. 

Example: 

 Continuing to fund a failing product because of the AED 500,000 already invested, despite projections showing ongoing losses.