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Workers’ education, spillovers and productivity: evidence from plant level production functions. American Economic Review 94
"... I assess the magnitude of human capital spillovers by estimating production functions using a unique firmworker matched data set. Productivity of plants in cities that experience large increases in the share of college graduates rises more than the productivity of similar plants in cities that expe ..."
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Cited by 161 (10 self)
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that are economically close are larger than spillovers between industries that are economically distant. (JEL J30, L60, 040) Human capital externalities may arise if the presence of educated workers makes other workers more productive. Alfred Marshall (1890) is among the first to recognize that social interactions
Communicated by J. Marshall.
"... Variation in mesophyll anatomy and photosynthetic capacity during leaf development in a deciduous mesophyte fruit tree (Prunus persica) and an evergreen sclerophyllous Mediterranean shrub (Olea europaea) ..."
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Variation in mesophyll anatomy and photosynthetic capacity during leaf development in a deciduous mesophyte fruit tree (Prunus persica) and an evergreen sclerophyllous Mediterranean shrub (Olea europaea)
Marshall sign and the doped t − J model
, 1995
"... Marshall sign as a sole source of sign problem hidden in an antiferromagnet is explored under doping. By tracking the Marshall sign, a zero spectral weight Z is revealed in the doped antiferromagnetic system. Z = 0 is caused by a phase string induced by the “bare ” hole. By eliminating such a phase ..."
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Marshall sign as a sole source of sign problem hidden in an antiferromagnet is explored under doping. By tracking the Marshall sign, a zero spectral weight Z is revealed in the doped antiferromagnetic system. Z = 0 is caused by a phase string induced by the “bare ” hole. By eliminating such a phase
1 Reduction of ChernSimons
, 2008
"... The spacelike reduction of the ChernSimons Lagrangian yields a modified Nonlinear Schrödinger Equation (jNLS) where in the nonlinearity the particle density is replaced by the current. When the phase is linear in the position, this latter is an ordinary NLS with timedependent coefficients which a ..."
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The spacelike reduction of the ChernSimons Lagrangian yields a modified Nonlinear Schrödinger Equation (jNLS) where in the nonlinearity the particle density is replaced by the current. When the phase is linear in the position, this latter is an ordinary NLS with timedependent coefficients which
MARSHALLPEIERLS SIGN RULE IN FRUSTRATED HEISENBERG CHAINS
"... We consider the frustrated antiferromagnetic S = 1 Heisenberg quantum spin chain with regard to the MarshallPeierls sign rule. Using exact diagonalization data we investigate the breakdown of the MarshallPeierls sign rule in dependence on frustration and compare our findings with data for s = 1/2 ..."
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/2. We calculate a critical value of frustration J21" , where the MarshallPeierls sign rule is violated. The extrapolation of this value to the infinite chain limit holds J?' s: 0.016, lower than in the case of s = 1/2 (J2crit 0.027). This points to a stronger influence of frustration
Algorithms for Combinatorial Problems Related to Train Marshalling
 IN PROCEEDINGS OF AWOCA 2000, IN HUNTER VALLEY
, 2000
"... We discuss a train marshalling principle on a hump yard based on radix sort. Initially we show that the number of sorting steps is dependent on the number of "chains" in the permutation that maps the final position of each car to its initial position. A chain is here a maximal interval ..."
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Cited by 6 (0 self)
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We discuss a train marshalling principle on a hump yard based on radix sort. Initially we show that the number of sorting steps is dependent on the number of "chains" in the permutation that maps the final position of each car to its initial position. A chain is here a maximal
Alfred marshall lecture: Women, work, and culture
 Journal of the European Economic Association
, 2007
"... This paper discusses some recent advances in the area of culture and economics and examines the effect of culture on a key economic outcome: female labor supply. To separate the effect of market variables and institutions from culture, I use an epidemiological approach, studying secondgeneration Am ..."
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Cited by 2 (0 self)
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and theoretical research topics in this area. (JEL: J13, J21, Z10) 1.
Simons' Equation Revisited
, 1994
"... In this paper we establish the generalized Simons' equations satisfied by the second fundamental form of a general immersion M p ,! M n . We then specialize these equations to the case of an immersion with constant mean curvature (or parallel mean curvature vector) in a space form. 1 Anais ..."
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Cited by 1 (1 self)
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Anais Acad. Brasil. Ciencias 66:4 (1994), 397403 SIMONS' EQUATION REVISITED Pierre B'erard 1. Introduction In 1968, J. Simons (Simons, 1968) established partial differential equations satisfied by the second fundamental form of a minimal immersion. The second order equation enabled him
1Simon Gouz
"... Abstract In this paper, I deal with the issue of the possible links between J.B.S. Haldane's production of an evolutionary theory of abiogenenis in 1929 and his political and intellectual commitment to Marxism in the thirties. Such a relationship has often been asserted, and this idea has certa ..."
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Abstract In this paper, I deal with the issue of the possible links between J.B.S. Haldane's production of an evolutionary theory of abiogenenis in 1929 and his political and intellectual commitment to Marxism in the thirties. Such a relationship has often been asserted, and this idea has
LAGRANGIAN SYMMETRIES OF CHERN–SIMONS THEORIES
, 1998
"... This paper analyses the Noether symmetries and the corresponding conservation laws for ChernSimons Lagrangians in dimension d = 3. In particular, we find an expression for the superpotential of ChernSimons gravity. As a byproduct the general discussion of superpotentials for 3rd order natural and ..."
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Cited by 2 (1 self)
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This paper analyses the Noether symmetries and the corresponding conservation laws for ChernSimons Lagrangians in dimension d = 3. In particular, we find an expression for the superpotential of ChernSimons gravity. As a byproduct the general discussion of superpotentials for 3rd order natural
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566