Abstract Researchers may want to estimate the percentage change of a variable, such as household wealth or corporate profits, that takes on economically significant nonpositive values. Using the logarithmic transformation, however, requires discarding observations with nonpositive values. This...

Researchers may want to estimate the percentage change of a variable, such as household wealth or corporate profits, that takes on economically significant nonpositive values. Using the logarithmic transformation, however, requires discarding observations with nonpositive values. This paper...

Researchers may want to estimate the percentage change of a variable, such as household wealth or corporate profits, that takes on economically significant nonpositive values. Using the logarithmic transformation, however, requires discarding observations with nonpositive values. This paper...

Particle condensation in magnetorheological suspensions (MRS) under external magnetic field is studied theoretically. It is shown that the bulk condensation of particles into dense phases is preceded by the formation of fairly long chain aggregates. Phase transition occurs as a condensation of...

The literature on multivariate stochastic volatility (MSV) models has developed significantly over the last few years. This paper reviews the substantial literature on specification, estimation, and evaluation of MSV models. A wide range of MSV models is presented according to various...

The competition among spin glass (SG), antiferromagnetism (AF) and local pairing superconductivity (PAIR) is studied in a two-sublattice fermionic Ising spin glass model with a local BCS pairing interaction in the presence of an applied magnetic transverse field Γ. In the present approach,...

By introducing relative velocities of arbitrary number of cars ahead into the full velocity difference models (FVDM), we present a forward looking relative velocity model (FLRVM) of cooperative driving control system. To our knowledge, the model is an improvement over the similar extension in...

First-principles calculations based on density functional theory were used to study the high-pressure phases of both ZnF<Subscript>2</Subscript> and CdF<Subscript>2</Subscript>. We found that the sequence of the pressure-induced phase transitions is: Rutile (P4<Subscript>2</Subscript>/mnm) ↦ CaCl<Subscript>2</Subscript> (Pnnm) ↦ PdF<Subscript>2</Subscript> (Pa-3) and CaF<Subscript>2</Subscript> (Fm3m) ↦ PbCl<Subscript>2</Subscript> (Pnma) ↦...</subscript></subscript></subscript></subscript></subscript></subscript></subscript></subscript>