Base value

The value of property at the inception of a valuation-linked insurance.
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In a valuation linked property insurance the value at the outset of a period of insurance is termed the base value.

Base year costs

Medicare phrase that means the amount a hospital actually spends to provide care in a prior time period. Usually the base year is the fiscal year that ends on or after September 30, 20XX, and before September 30, 20XX, of the next year.

Base years

For Social Security benefits, wage earner’s years after 1950 up to the year of entitlement to retirement or disability insurance benefits. For a survivor’s claim, the base years include the year of the worker’s death.

Base-line

The given value, e.g. 18 degrees C (i.e. the reference temperature), from which a deviation is measured in a weather derivative. See COOLING DEGREE DAYS; HEATING DEGREE DAYS.

Basic Capital Adequacy Relativity (B.C.A.R.)

This percentage measures a company’s relative capital strength compared to its industry peer composite. A company’s BCAR which is an important component in determining the appropriateness of its rating, is calculated by dividing a company’s capital adequacy ratio by the capital adequacy ratio of the median of its industry peer composite using Best’s proprietary capital mode. Capital adequacy ratios are calculated as the net required capital necessary to support components of underwriting, asset, and credit risks in relation to economic surplus.