Research has suggested that workers in precarious work conditions tend to show a temporal discounting pattern for intertemporal choices (ie, decisions that involve competing rewards between now and the future), which has the potential to reinforce their socioeconomic disadvantages. Integrating Immediate-Delayed Compensation Theory (Martin, 1999a) and Uncertainty Management Theory (Lind & van den Bos, 2002; van den Bos & Lind, 2002), this dissertation aims at explaining and identifying ways to mitigate the motivational challenges associated with workers in precarious conditions. Three studies were conducted to test the hypotheses: a two-factor factorial experiment, a three-wave longitudinal study covering a one-month period, and a three-wave longitudinal study based on a nationally representative sample covering a four-year period.