That is wrong. I have lived in both US and Russia. Some things are cheaper, but, overall, life is more expensive in Russia due to sheer inefficiency. For example, you usually pay nothing for delivery of online purchases in the US, but it's a minimum of $5 in Russia, and you should often sit all day at home waiting for the courier with the package. Taxes on labor are higher. Sales tax is 20% in Russia, so all merchandise is more expensive. Cars are much more expensive, and even the gas is more expensive.
