This paper studies the role of land as a factor of production in a simple monopolistic competition model of trade and geography. Overall we find that land for production is a powerful dispersion force. More specifically, we show that, in contrast to the new trade literature, a larger country will have lower wages, in general. Moreover, allowing for labor mobility, we show that agglomeration is ...

We introduce the two-particle probability density X(x) of x = r12 · p12 = (r1 − r2) · ( p1 − p2). The fundamental equations involved in the derivation of this new intracule X(x), which we call the Posmom intracule, are derived and we show how to derive X(x) from the many-particle wave-function. We contrast it with the Dot intracule [Y.A. Bernard, D.L. Crittenden, and P.M.W. Gill, Phys. Chem. Ch...

The R12 h matrices of the Jordanian Uh(sl(2)) algebra at arbitrary dimensions may be obtained from the corresponding Rj1;j2 q matrices of the standard q-deformed Uq(sl(2)) algebra through a contraction technique. By extending this method, the coloured two-parametric (h, α) Jordanian R1122 h,α matrices of the Uh,α(gl(2)) algebra may be derived from the corresponding coloured R j1,z1;j2,z2 q,λ ma...

This paper has two goals. First, to provide an accurate characterisation of the new small firm in Scotland by reference to markets, finance, costs, business strategy, human capital, internal organisation and technical change. Second, to use these same features to discover salient differences between small firms which either survive or close, two or three years after inception. The empirical evi...

Using administrative data from firms in Australia that conduct research and development (R&D), we examine how R&D activity of other firms and public institutions affect a firm’s own R&D expenditure. We distinguish between the impact of peers, suppliers and clients. We examine whether geographical proximity and industrial clustering affect R&D spillovers. Overall, we detect positive effects on R...

We present a simulation of the liquid-vapor interface of argon with explicit inclusion of the three-body interactions. The three-body contributions to the surface tension are calculated using the Kirkwood-Buff approach. Monte Carlo calculations of the long-range corrections to the three-body contribution are calculated from the radial distribution function g((2))(z1, cos θ12, r12). Whereas the ...

The complete error-in-variables-model (EVM) framework, consisting of both design of experiments and parameter estimation stages, is applied to the terpolymerization of 2-acrylamido-2-methylpropane sulfonic acid (AMPS, M1), acrylamide (AAm, M2) and acrylic acid (AAc, M3). This water-soluble terpolymer has potential for applications in enhanced oil recovery, but the associated terpolymerization k...

Model Independent Analysis (MIA), which employs statistical methods to reveal one-micron charge-induced centroid changes in pulse-by-pulse beam-position-monitor (BPM) measurements at the SLAC linac [1] has been extended to storage rings, and is here applied at PEP-II to analyze transverse motion. The beam is resonantly excited by a shaker in the horizontal and vertical directions and 2050 conse...

The given paper is aimed at constructing the general circuit of heat processes in a semihermetic reciprocating refrigerant compressor as a basis of application of new ecology-friendly refrigerants as well as optimizing design parameters of compressor. While performing this work the following problems were solved: 1. Experimental research of heat processes in a semihermetic refrigerant reciproca...