*Article* **A New Continuous-Discrete Fuzzy Model and Its Application in Finance**

**Hoang Viet Long 1,2, Haifa Bin Jebreen 3,\* and Y. Chalco-Cano <sup>4</sup>**


Received: 19 September 2020; Accepted: 5 October 2020; Published: 16 October 2020

**Abstract:** In this paper, we propose a fuzzy differential-difference equation for modeling of mixed continuous-discrete phenomena. In the special case, we present the general solution of linear fuzzy differential-difference equations. The dynamical process in the intervals is presented by the corresponding fuzzy differential equation and with impulsive jumps in some points. We illustrate the applicability of the model to study the time value of money.

**Keywords:** fuzzy differential equations; fuzzy difference equations; mixed continuous-discrete model; strongly generalized Hukuhara differentiability; time value of money
