This page is a review of 55 landmark studies on happiness, a state of being that Laughter Wellness helps to temporarily experience (long-term happiness is a multi-faceted endeavor that requires a life-commitment): laughter uplifts your mood-states, directly impacting how you perceive the world around you and, therefore, how you react to what happens to you. When you feel good, you are more likely to redefine stress as a challenge rather than as a threat, and face demanding situations constructively and with a positive attitude.

ThemeConclusion of StudyReference
Accuracy in diagnosisHappy doctors made the right diagnosis faster.Estrada, C. A., Isen, A.M., & Young, M. J., 1997.
Business DealsPeople who expressed more positive emotions when negotiating business deals did so more efficiently and successfully than those who were more neutral or negative.Kopelman, S., Rosette, A. S., & Thompson, L, 2006.
CommitmentHappier workers are more committed to their organization.Herrbach, 2006; Judge et al., 1999; Mignonac & Herrbach, 2004; Thoresen et al., 2003.
Cooperation, Negotiation, CollaborationHappier employees are more likely to manage negotiations with cooperation and collaboration than avoidance and competition. They are more able to find win-win solutions. They have less contentious behaviors.Carnevale and Isen (1986); Baron, Fortin, Frei, Hauver, & Shack, 1990; Barsade, 2002; Forgas, 1998.
CreativityHappy doctors exhibited much more creativity.Estrada, C. A., Isen, A.M., & Young, M. J., 1997.

Creativity, Originality, FlexibilityPositive emotions can enhance originality and flexibility.Estrada, Isen, & Young, 1994; Grawitch, Munz, Elliott, & Mathis, 2003; Grawitch, Munz, & Kramer, 2003; Isen, Daubman, & Nowicki, 1987; Isen, Johnson, Mertz, & Robinson, 1985; for nonexperimental work, see Madjar, Oldham, & Pratt, 2002.
Curiosity, ExplorationExperience of positive emotions is associated with curiosity and has been found to “broaden” a person’s attention and interests.Kashdan, Rose, & Fincham, 2004.
EffectivenessHappier employees are 25% more effective than least happy ones.Jessica Pryce-Jones (iOpener).
EfficiencyHappier employees are 25% more efficient than least happy ones.Jessica Pryce-Jones (iOpener).
EnergyEmployees who are happiest have 180% more energy than those who are most unhappy at work.Jessica Pryce-Jones (iOpener).
EngagementHappiest employees are 180% more engaged than unhappiest employees.
(Note: Happiness is a wider construct than Engagement. Please see later section for the difference between engagement and happiness at work.)
Jessica Pryce-Jones (iOpener).
EvaluationsHappier employees receive more positive evaluations from superiors.Cropanzano & Wright, 1999; Wright & Staw, 1999.
GoalsHappier people set higher goals for themselves.
Happiest employees embrace goals 30% more.
Baron, 1990; Hom & Arbuckle, 1988.
Jessica Pryce-Jones (iOpener).
GoalsOptimists set more goals, and more difficult goals, stay more engaged when things get difficult and transcend obstacles more easily.Carver, C.S. & Scheier, M.F.,  2005. Snyder, C.R. & Lopez, S.J., Scheier, M.F., Weintraub, J.K. & Carver, C.S., 1986.
HealthThose who are happier take less sick then less happy colleagues.Jessica Pryce-Jones (iOpener).
HealthPeople who wrote about a positive experience for 20 minutes three times a week were happier and had fewer symptoms of illnesses three months later.Burton, C. & King, L., 2004.
MotivationEmployees who are happiest are 50% more motivated than those who are least happy at work.Jessica Pryce-Jones (iOpener).
Organizational Change CopingHappier workers cope better with organizational change.Judge et al., 1999.
Organizational Citizenship Behaviors. These include helping peers and customers, sharing, volunteering for optional tasks, being cooperative, offering suggestions for improvement, spreading goodwill.Happier people demonstrate more “organizational citizenship” behavior. They go the extra mile, beyond what is expected of their role.Baron et al., 1992; Borman, Penner, Allen, & Motowidlo, 2001; Credé, Chernyshenko, Stark, Dalal, & Bashshur, 2005; Fisher, 2002; George, 1991; George & Brief, 1992; Ilies, Scott, & Judge, 2006; Lee & Allen, 2002; Miles, Borman, Spector, & Fox, 2002; Rosenhan, Underwood, & Moore, 1974; Williams & Shiaw, 1999.
PerformancePeople with fixed mindsets miss good opportunities for improvement and consistently underperform while those with a “growth” mindset watch their abilities improve.Dweck C.S., 2006.

PerformanceHappiness is a good predictor of job performance.Wright & Cropanzano, 2000, Hom & Arbuckle, 1988.
PerformanceEmployees who feel they have high levels of control at the office are better at their jobs and say they have more job satisfaction.Sparr, J.L., & Sonnentag, S., 2008; Spector, P., 2002.
Performance ratingsHappy people are reviewed by their supervisors more favorably.Cropanzano & Wright, 1999, Judge et al, 1999; Staw et al, 1994, Wright & Staw, 1999.
Performance ratingsAccounts who believed they could accomplish what they set out to do were the ones who scored the best job performance ratings ten months later.Saks, A. M, 1995.
ProductivityHappiest employees are 47 percent more productive than their least happy colleagues. They are contributing a day and a quarter more per week than their least happy colleagues.Jessica Pryce-Jones (iOpener Institute of People and Performance).
Receiving Social SupportHappier people receive more social support from colleagues and supervisors.Iverson et al., 1998.
RespectHappier employees report that they experience 28 % more respect from colleagues and 31% from bosses then least happy colleagues.Jessica Pryce-Jones (iOpener).
Retention, AbsenteeismHappy employees are more likely to remain at their jobs and have lower absenteeism.Seligman & Schulman, 1986; Pelled & Xin, 1999.
SalesInsurance agents who have a positive disposition sell more policies than less positive peers.Seligman & Schulman, 1986.
Satisfaction in job, family, relationships.More feelings of control predicted more satisfaction in job, family, relationships.National Study of the Changing Workforce, 2002.
Self-belief/ConfidenceHappier employees have 25% more self-belief than least happy ones.Jessica Pryce-Jones (iOpener).

More references on the benefits of happiness at work
Does Happiness Promote Career Success?

By Julia K. Boehm and Sonja Lyubomirskyin, Journal of Career Assessment 2008;16;101. From looking at 99 cross-sectional,longitudinal and experimental studies,the authors arrived at the following conclusion: “Happy people are more satisfied with their jobs. They perform better on assigned tasks than less happy peers and are more likely to take on extra role tasks such as helping others. Happy people are less likely to exhibit withdrawal behaviors such as absenteeism. Overall, happy people enjoy greater workplace success than less happy people.”

The Benefits of Frequent Positive Affect: Does Happiness Lead to Success?

Does Happiness PromoteCareerSuccess?

By Sonja Lyubomrisky, Laura King, Ed Diener. In press, Psychological Bulletin. From looking at 225 studies, the authors arrived at the following conclusion: “Our review of the relevant experimental literature reveals compelling evidence that positive affect fosters the following resources, skills, and behaviors – sociability and activity (mean r =.51), altruism (mean r = .43), liking of self and others (mean r = .36), strong bodies and immune systems (mean r = .38), and effective conflict resolution skills (mean r = .33). The evidence is weaker, but still consistent, that pleasant moods promote original thinking (mean r = .25).”

TheHappiness Advantage
By ShawnAchor.

This page was prepared in cooperation with