It seems the opposite of the individualisation trend a lot of people experience, but new research – a cross-temporal meta-analysis – shows that – in the US – cooperation among strangers has gradually increased since the 1950s. Is there hope?
From the press release:
“We were surprised by our findings that Americans became more cooperative over the last six decades because many people believe U.S. society is becoming less socially connected, less trusting and less committed to the common good,” said lead researcher Yu Kou, PhD, a professor of social psychology at Beijing Normal University. “Greater cooperation within and between societies may help us tackle global challenges, such as responses to pandemics, climate change and immigrant crises.”
The researchers analyzed 511 studies conducted in the United States between 1956 and 2017 with a total of more than 63,000 participants. Those studies included lab experiments measuring cooperation among strangers. The research was published online in Psychological Bulletin.
The study found a small, gradual increase in cooperation across the 61-year period, which the researchers said may be linked to notable shifts in U.S. society. The increase in cooperation was associated with increases in urbanization, societal wealth, income inequality and the number of people living alone. The study cannot prove those factors caused an increase in cooperation, only that there is a correlation.
Increased cooperation has been linked with market competitiveness and economic growth in prior research. As more people live in cities and on their own, they may be forced to cooperate with strangers, said study co-author Paul Van Lange, PhD, a professor of social psychology at Vrije Universiteit Amsterdam.
“It’s possible that people gradually learn to broaden their cooperation with friends and acquaintances to strangers, which is called for in more urban, anonymous societies,” Van Lange said. “U.S. society may have become more individualistic, but people have not.”
The studies that were analyzed occurred in lab settings primarily with college students as participants, so the findings may not be representative of real-life situations or of U.S. society as a whole. However, the researchers noted that prior studies have not found that levels of cooperation vary by gender or ethnicity in the U.S.
The study did not measure some other societal factors, such as levels of trust about strangers. Prior research has found a general decline in trust over several decades in the U.S.
“One intriguing implication of these findings is that while Americans’ cooperation has increased over time, their beliefs about others’ willingness to cooperate has actually declined,” the journal article stated.
Abstract of the study:
Cooperation among strangers has been hypothesized to have declined in the United States over the past several decades, an alarming trend that has potential far-reaching societal consequences. To date, most research that supports a decline in cooperation has relied on self-report measures or archival data. Here, we utilize the history of experimental research on cooperation in situations involving conflicting interests (i.e., social dilemmas). We meta-analyzed 511 studies conducted between 1956 and 2017 with 660 unique samples and effect sizes involving 63,342 participants to test whether the average level of cooperation observed in these studies had declined over time. We found no evidence for a decline in cooperation over the 61-year period. Instead, we found a slight increase in cooperation over time. In addition, some societal indicators (e.g., income inequality, societal wealth, urbanization level, and percentage of people living alone) measured 10 to 5 years prior to measures of cooperation were found to be positively associated with cooperation, suggesting that they may be potential societal underpinnings of increases in cooperation. These findings challenge the idea that social capital and civic cooperation among strangers have declined in the United States over time, and we offer directions for future research to understand causes of an increase in cooperation.