Study refutes theory linking cognition, genes and income

Researchers have cast doubt on a widely-held belief that connects family income with cognitive development, according to a new study published in Proceedings of the National Academy of Sciences.

How much does infrastructure boost an economy?

Before 1870, India barely had railroads. It didn't have many canals either, and only a small percentage of the population lived along the three main rivers. So when goods needed to be transported, people used steer, which ...

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