A research by the National Bureau of Economic Research shows that owning an iPhone is the most common sign of wealth.
Marianne Bertrand and Emir Kamenica, economists at the University of Chicago, say:
We analyze temporal trends in cultural distance between groups in the US defined by income, education, gender, race, and political ideology.
There's a chance of 69.1 percent that an iPhone owner has a high-income, which is an income in the top quartile of income for households of that type.
An iPad can also be an indicator for someone's wealth:
Knowing whether someone owns an iPad in 2016 allows us to guess correctly whether the person is in the top or bottom income quartile 67 percent of the time,” they write. The research also suggests that owning an Android phone or using Verizon are a strong indicators of being high-income as well.
The paper can be read here.
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