手法を比較

	二項オプション価格設定 (Cox-Ross-Rubinstein)	金利モデル（ヴァシチェク、CIR、ネルソン・シーゲル）
分野	ファイナンス	ファイナンス
系統	Regression model	Regression model
提唱年	1979	1977
提唱者	John Cox, Stephen Ross & Mark Rubinstein	Vasicek (1977); Nelson & Siegel (1987)
種類	Discrete-time lattice option-pricing model	Term-structure / short-rate model
原典	Cox, J. C., Ross, S. A., & Rubinstein, M. (1979). Option pricing: A simplified approach. Journal of Financial Economics, 7(3), 229–263.	Vasicek, O. (1977). An Equilibrium Characterization of the Term Structure. Journal of Financial Economics, 5(2), 177–188.
別名	binomial tree model, Cox-Ross-Rubinstein model, CRR model, lattice option pricing	term structure models, short-rate models, yield curve models, Vasicek model
関連	4	5
概要	The binomial option pricing model, introduced by John Cox, Stephen Ross, and Mark Rubinstein in 1979, prices options by modelling the underlying as a discrete tree in which the price moves up or down by fixed factors at each step. Working backward from the option's payoff at maturity using risk-neutral probabilities, it produces a no-arbitrage price that converges to Black-Scholes as the number of steps grows — while naturally handling American early exercise, which the closed-form formula cannot.	Interest rate models are structural models that describe how interest rates evolve over time within a stochastic differential equation framework. The family covers Vasicek's normal short-rate process (1977), the CIR square-root process, the adjustable Hull-White extension, and the Nelson-Siegel approach to fitting the yield curve (1987).