In our recently article published in “Frontiers in Behavioral Neuroscience”, we show that high emotional arousal is not solely associated to unethical economic behavior —such as tax evasion— as previous research had revealed. Instead, people get emotionally aroused also when making ethical choices if these choices imply the loss of monetary reward. In other words, it seems to be more stressful for someone to lose money than to make an unethical decision that causes a loss of money to others. This means that, in certain circumstances, our bodies reward unethical decisions in order to minimise the unpleasant feeling produced by decisions that cost us money. This behavior is inverted when the possibility of punishment exists. In that case corrupt decisions become more stressful than ethical ones.
The presentation of my lecture for the students of the Master in Economics at the University of Granada (20th of March 2013).