In economics, capital services refer to a chain-type index of service flows derived from the stock of physical assets and software. These assets are coordination, equipment, software, structures, land, and inventories. Capital services are estimated as a capital-income weighted average of the growth rates of each asset. Capital services differ from capital stocks because short-lived assets such as equipment and software provide more services per unit of stock than long-lived assets such as land. Unlike capital goods, capital services are owned by the person or group of people providing them.