“…But it is well-known that there is no analytic formula available for arithmetic Asian option prices even under the Black-Scholes model. On the contrary, continuous-time geometric Asian option prices are more tractable and can be expressed analytically or semi-analytically at least under more relaxed assumptions covering various models such as Black-Scholes, Heston, and Lévy model [2,3,4,7,11,12,13]. In this regard, geometric Asian option prices can be utilized as approximate values for the corresponding arithmetic Asian option prices.…”