Modernization Does Not Erase Cultural Differences. It Amplifies Them.

The conventional story about modernization goes like this: as countries get richer, more educated, and more connected to global markets, their cultures converge. Birth rates drop. Divorce rates rise. Individualism replaces collectivism. Eventually, modernity produces a recognizable set of shared values worldwide.

Thomas Talhelm of the University of Chicago Booth School of Business tested that hypothesis with four decades of data. The answer is not just "no." It is the opposite.

Values are diverging, not converging

Talhelm analyzed the World Values Survey, which has collected data on beliefs, attitudes, and social norms across a broad range of countries since 1981. The conventional prediction would be that as all countries modernized over this period, the spread in their values would narrow. Instead, variation in values between countries grew from 1981 to 2017. Countries became more different from each other, not less.

This is not a subtle trend that requires statistical heroics to detect. It is visible in the raw data. The global spread of values expanded over a period when economic integration, internet access, education levels, and urbanization all increased dramatically.

Rice, wheat, and the test case of China

To investigate the mechanism, Talhelm turned to China, a country that has undergone one of the fastest modernization processes in human history. He focused on a well-established cultural divide within China: the difference between rice-growing and wheat-growing regions.

Rice farming, which requires intensive irrigation and coordinated labor among neighbors, historically produced more collectivistic cultures. Wheat farming, which demands less interpersonal coordination, produced more individualistic ones. This "rice theory" of culture has been documented in previous research, including Talhelm's own work.

As China modernized, agriculture shrank to a small fraction of the economy. Fewer people farm at all, let alone grow rice or wheat. The prediction from modernization theory would be clear: as farming becomes irrelevant, the cultural differences it created should fade.

They did not. Census data on divorce rates, people living alone, and three-generation households showed that the correlation between rice farming and collectivism has actually increased since the 1980s. Families in traditionally rice-growing regions are more likely to live in large, multigenerational households and less likely to live alone than their counterparts in wheat-growing regions. The gap widened as China got richer.

Water on a seed, not a solvent

Talhelm proposes a reframing. Modernization is not an external force that pushes all cultures toward the same destination. It is better understood as an influx of resources that allows people to more fully express their existing cultural values and beliefs.

If your culture values family closeness and multigenerational living, more wealth means bigger houses that can accommodate extended families, not smaller apartments for nuclear ones. If your culture values individual autonomy, more wealth means the freedom to live alone, travel, and pursue personal goals. The same economic resource, applied to different cultural starting points, produces divergent outcomes.

The analogy Talhelm uses is water poured on a seed. The water does not determine what grows. The seed does. The water just provides the conditions for fuller expression of what was already there.

Implications for global policy and business

The finding has practical relevance for anyone who operates across cultures. If modernization reliably homogenized values, multinational corporations, international organizations, and development agencies could assume convergence over time. But if cultural differences persist or amplify with economic growth, strategies built on the assumption of convergence will fail.

Development policies that assume poor countries will adopt Western-style individualism as they grow richer may be fundamentally misguided. Marketing strategies that assume global consumers will increasingly share preferences may overestimate convergence and underestimate the staying power of local cultural patterns.

What the data does not settle

The World Values Survey, while extensive, relies on self-reported attitudes that can shift with question wording, social desirability, and translation across languages. Whether the observed divergence reflects genuine changes in behavior or shifts in how people describe their values is difficult to disentangle completely.

The Chinese census analysis focuses on household structure metrics, divorce rates, and living arrangements. These are reasonable proxies for individualism and collectivism, but they do not capture the full range of cultural values. Other dimensions of culture, attitudes toward authority, religious belief, gender roles, and trust in institutions, may follow different patterns.

The rice-wheat comparison within China offers a compelling natural experiment, but China is a single country with a specific history and governance structure. Whether the amplification pattern holds in other modernizing contexts, such as sub-Saharan Africa, Southeast Asia, or Latin America, requires additional research.

Talhelm's argument is also about direction, not permanence. Cultures could eventually converge over much longer time horizons. The data covers four decades, a significant window but not enough to rule out convergence over centuries.

What the data does show clearly is that the most common version of modernization theory, the one that predicts convergence as a natural and inevitable consequence of economic development, does not hold up well against the evidence available so far.