Economists typically make simplifying assumptions to make the solution and estimation of their highly complex models feasible. These simplifications include approximating the true nonlinear dynamics of the model, disregarding aggregate uncertainty or assuming that all agents are identical. While...

This paper estimates a single pricing factor from index options and shows that it can explain a large set of prominent stock return anomalies jointly. A key feature of the new pricing factor is that it is a U-shaped function of index returns, implying that investors demand an upside risk...

This paper aims to enhance the econometric models mainly used by the financial services firms to predict prepayments of fixed-rate institutional loans. Upon deploying several model types for prepayment prediction on Euro-currency, fixed-rate institutional loans between 2012 and 2020, we found...

In this paper we prove the symmetry result for solutions of nonlinear elliptic Neumann boundary value problems by using the Alexandrov's method of reflection and maximum principle, on the unit ball in the n-dimensional Euclidean space with n ≥3

This research estimated the smooth transition autoregressive model with exogenous variables to evaluate the non-linearity of West Texas Intermediate (WTI) crude oil price from the exchange rate of US dollar and WTI crude oil production. The sample period used in this research was the weekly data...

Exploring the causal relationship between energy consumption and economic growth is important in energy economics. We performed an empirical re-examination of the causal interactions between these two factors in South Korea. As most previous studies in South Korea overlook the nonlinear behavior...