Heteroskedasticity
Key Takeaways – Heteroskedasticity occurs when the variance of the regression errors (residuals) is not constant across observations. – It does not bias ordinary…
Definition Of Heteroskedastic
1) Definition (short) – Heteroskedasticity (or heteroscedasticity) describes the situation in a regression where the variance of the error (residual) term is not constant…
Heterodox Economics
Heterodox economics is an umbrella term for economic theories, methods, and approaches that stand outside — and often in opposition to — the mainstream…
Heston Model
The Heston model (Heston, 1993) is a stochastic-volatility model for option pricing. It extends the Black–Scholes framework by making volatility itself a random process…
Situational Leadership Model
• The Situational Leadership Model (Hersey–Blanchard) says there is no single “best” leadership style; effective leaders adapt their approach to the follower’s maturity (ability…
Heroes Earned Retirement Opportunities Hero Act
• The Heroes Earned Retirement Opportunities (HERO) Act (2006) lets eligible military members use tax‑free combat pay as “compensation” for purposes of contributing to…
Herbert A Simon
Herbert A. Simon (1916–2001) was a multidisciplinary scholar whose work reshaped economics, organizational theory, psychology, and computer science. He won the 1978 Nobel Memorial…
Henry Hub
Henry Hub is a natural gas pipeline interconnection and trading point located near Erath, Louisiana. It is owned by Sabine Pipe Line LLC and…
Help Wanted Index
The Help‑Wanted Index (HWI) is a labor‑market indicator that tracks the volume of help‑wanted (classified) advertisements as a proxy for employers’ demand for labor.…
Hell Or High Water Contract
A “hell or high water” contract (also called a promise-to-pay contract) is a non‑cancelable agreement that obligates one party—typically a purchaser, lessee, or borrower—to…