Capital formation involves increasing a nation's physical stock of capital through investments that boost future output and income. These investments include factories, machinery, equipment, materials, as well as social and economic infrastructure like roads, electricity, and communications. Capital accumulation is important for economic development as it allows for expanded output levels and increased efficiency. A higher rate of capital formation leads to higher national income, more employment opportunities, improved infrastructure, a more favorable balance of payments, reduced foreign debt burden, less inflationary pressure, expanded markets, and technological improvements. It is thus seen as crucial for addressing issues like low per capita income, population growth, and shortages in developing countries.