The article examines how economic activity is distributed across different regions in Russia from 1995 to 2010. The researchers looked at factors like population density, market access, and sector diversity to understand why some areas have more economic growth than others. They found that economic activity is still concentrated in certain regions, with the East and West showing different trends. The East has valuable natural resources, while the West has better infrastructure and larger markets. Factors like market potential and sector diversity play a big role in how productive an area is. Overall, the study shows that population density and market proximity can affect different sectors like agriculture and construction in different ways.