Psychology says salary increments affect employees - But not in the way you think

Most people assume salary increases automatically make employees happier, more motivated, and more productive. It sounds logical because more money should lead to better workplace performance and higher satisfaction. However, some psychology research suggests that the relationship between pay raises and human behavior is not that simple and may be more complex than many people think. While salary increments can create excitement and short-term motivation, their emotional effects may not last for long as many would think. Studies in psychology and workplace behavior show that factors such as recognition, fairness, and personal growth often play a bigger role in long-term job satisfaction than salary alone.

HAPPINESS FROM RAISES OFTEN FADES FASTER THAN EXPECTED

Getting a salary increase usually creates a positive emotional reaction. People may feel appreciated, successful, and rewarded for their efforts. However, researchers suggest these feelings may decrease over time because of a psychological effect known as 'Hedonic Treadmill' or 'Hedonic Adaptation'. Research by psychologists Philip Brickman and Donald Campbell in 1971 introduced the idea that people gradually return to a normal emotional state even after major positive changes in life.


The hedonic treadmill describes the human tendency to return to a relatively stable level of happiness over time, regardless of major life events. People often recover from difficult experiences faster than expected, but they also adjust to positive moments and achievements. Excitement from success, money, or good news usually fades as it becomes part of everyday life. Similar to running on a treadmill without moving forward, people may feel emotional changes temporarily before eventually adapting and returning to their usual state of happiness.


EMPLOYEES OFTEN COMPARE THEIR PAY WITH OTHERS

Money is not only about financial value. Psychology suggests salary also carries social meaning. Employees frequently compare their income with coworkers, friends, or people in similar positions. A well-known theory called 'Equity Theory', developed by psychologist John Stacey Adams in 1963, explains that people evaluate fairness by comparing what they contribute and what they receive in return. Workers who believe they are being paid unfairly compared with others may experience lower motivation and reduced job satisfaction.

Research in organizational psychology has repeatedly shown that perceptions of fairness strongly influence employee attitudes. A person receiving a raise may still feel dissatisfied if they believe another employee received more for similar work. In some cases, perceived inequality creates stronger emotional reactions than the raise itself.

RECOGNITION AND PURPOSE MAY MATTER MORE OVER TIME

Psychology research suggests that after basic financial needs are met, non-financial factors become increasingly important. Researchers Edward Deci and Richard Ryan developed 'Self-Determination Theory' (SDT), which argues that people are motivated by psychological needs such as competence, autonomy, and connection with others. Employees often want to feel valued, trusted, and involved in meaningful work. Studies have shown that workplaces providing recognition, growth opportunities, and a sense of purpose often experience higher employee engagement.

MASLOW’S HIERARCHY OF NEEDS AND HERZBERG’S TWO-FACTOR THEORY

Maslow’s 'Hierarchy of Needs' is a motivational theory developed by Abraham Maslow that explains human behavior through five levels of needs: physiological needs, safety, love and belonging, esteem, and self-actualization. According to the theory, people generally focus on meeting basic needs before pursuing higher goals.

American psychologist Frederick Herzberg’s 'Two-Factor Theory' explains workplace motivation through two categories: hygiene factors and motivators. Hygiene factors, such as salary, company policies, and working conditions, prevent dissatisfaction, while motivators like recognition, achievement, responsibility, and growth create job satisfaction and encourage stronger performance.

Overall, salary increases still matter because financial security is important. However, psychology suggests that long-term motivation may depend less on the size of a paycheck and more on how employees feel about their work and their place within an organization.