Debt-to-equity ratio On a balance sheet, the formal definition is that debt (liabilities) plus equity equals assets, or any equivalent reformulation. Both the formulas below are therefore identical: Debt to equity can also be reformulated in terms of assets or debt: General Electric Co. () Debt-to-equity ratio The debt-to-equity ratio (D/E) is a financial ratio indicating the relative proportion of shareholders' equity and debt used to finance a company's assets. Closely related to leveraging, the ratio is also known as risk, gearing or leverage. The two components are often taken from the firm's balance sheet or statement of financial position (so-called book
Signal-to-interference ratio Signal-to-interference ratio The signal-to-interference ratio (SIR or S/I), also known as the carrier-to-interference ratio (CIR or C/I), is the quotient between the average received modulated carrier power "S" or "C" and the average received co-channel interference power "I", i.e. cross-talk, from other transmitters than the useful signal. The CIR resembles the carrier-to-noise ratio (CNR or "C/N"), which is the signal-to-noise ratio (SNR or "S/N") of a modulated signal before demodulation. A distinction is that interfering radio transmitters contributing to "I" may be controlled by radio resource management, while "N" involves noise power from other sources, typically additive white gaussian noise