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Working capital (WC) is a financial metric which represents operating liquidity available to a business, organisation, or other entity, including governmental entities. Along with fixed assets such as plant and equipment, working capital is considered a part of operating capital. Gross working capital is equal to current assets.
It is commonly represented as total assets less current liabilities (or fixed assets plus working capital requirement). [2] ROCE uses the reported (period end) capital numbers; if one instead uses the average of the opening and closing capital for the period, one obtains return on average capital employed (ROACE). [citation needed]
Wire-grid Cobb–Douglas production surface with isoquants A two-input Cobb–Douglas production function with isoquants. In economics and econometrics, the Cobb–Douglas production function is a particular functional form of the production function, widely used to represent the technological relationship between the amounts of two or more inputs (particularly physical capital and labor) and ...
Variable capital, by contrast, refers to the capital outlay on labour costs insofar as they represent workers' earnings, the sum total of wages. The concept of constant vs. variable capital contrasts with that of fixed vs. circulating capital (used not only by Marx but by David Ricardo and other classical economists). The latter distinction ...
The (short term) goals of working capital are therefore not approached on the same basis as (long term) profitability, and working capital management applies different criteria in allocating resources: the main considerations are (1) cash flow / liquidity and (2) profitability / return on capital (of which cash flow is probably the most important).
The non-labor or capital share (NLS) is defined as 1 − LS. [ 7 ] In Capital in the Twenty-First Century , Piketty described the accounting identity α = r × β as the 'first fundamental law of capitalism', where α represents the capital share, r is the rate of return on capital, and β is the capital to income ratio. [ 8 ]
The variable capital actually tied up by an enterprise at any point in time will usually be less than the annual flow value, because wages can in part be paid out of revenues received from ongoing product sales. Thus, the capital reserves held by an enterprise for paying wages may, at any time, be only 1/10 or so of their annual flow value.
It is only profitable for a firm to keep adding capital when the marginal revenue product of capital, MRP K (the change in total revenue, when there is a unit change of capital input, ∆TR/∆K) is higher than the marginal cost of capital, MC K (marginal cost of obtaining and utilizing a machine, for example).