This paper considers the optimization problem of minimizing a rational function. We reformulate this problem as a polynomial optimization problem by the technique of homogenization. These two problems are shown to be equivalent under some generic conditions. The exact Jacobian SDP relaxation...

The article investigates to what extent various underlying macro (oil, supply, demand and portfolio) shocks impact the fluctuations of Japanese stock prices by developing a multivariate structural vector autoregression (SVAR) model. The results from a Markov regime-switching (MS) specification...

This paper investigates to what extent the oil price shock and three other types of underlying macroeconomic shocks impact the trend movements of China's real exchange rate. By constructing a four-dimensional structural VAR model, the results suggest that real oil price shocks would lead to a...

Currently proposals are actively circulating in China to move to a unified enterprise tax structure with similar tax treatment of state-owned enterprises (SOEs), other private enterprises (OPEs) and foreign investment enterprises (FIEs). FIEs presently receive significant tax preferences through...

This paper develops a theoretical model to identify various risks in the Chinese property insurance market. Consequently, we apply a structural VAR model to quantify the magnitude, historical timing of these risks, and their dynamic impacts on the permanent and transitory components of the...

The stochastic resonance (SR) in a second-order linear system driven by a trichotomous noise and an external periodic signal is investigated. By the use of the properties of the trichotomous noise and the Shapiro–Loginov formula, the exact expression for the output spectral amplification (SPA)...

The zone system used for freight data collection and the geographic resolution of published data has a significant impact on analysis and planning. The majority of existing freight model zones are created in an ad hoc way. In this paper, a new model-based design method is introduced to develop...