The Effect of Collective Bargaining and Central Bank Independence on Inflation and Unemployment: Evidence From the OECD.

In this paper, panel data from 15 OECD countries (1971-1990) are used to test the hypothesis that differences in monetary and labour market institutions explain a significant portion of the surprisingly diverse inflation and unemployment experiences among similarly developed economies. As an alternative to the measures of centralization of wage bargaining and corporatism used in previous studies, a Hefindahl index of union concentration is used as a proxy for the degree of coordination failure extant in wage setting. Additional explanatory variables used include union density, union coverage and the level of wage bargaining. We observe that inflation has a hump-shaped relationship with central bank independence and union density, as well as a negative relationship with union concentration, while unemployment has a U-shaped relationship with union density, and a hump-shaped relationship with union concentration and central bank independence. These findings are largely robust to the use of alternative estimators and assumptions on the structure of the error term. Further results are obtained from stratifying the sample by central bank independence and union concentration. These are then compared with the contrasting predictions of two recent theoretical models. Finally, we show that high union concentration is associated with smaller deviations of actual inflation rates from predicted rates in the aftermath of the 1973-74 OPEC price shock.BANKS ; INFLATION ; WAGES ; LABOUR MARKET

Testing Alternative Models of Labor Supply. Evidence from Taxi-Drivers in Singapore.

In this paper, we use data from a survey of taxi drivers in Singapore to test two competing labor supply hypotheses: the standard intertemporal model and the income targeting model, where workers set an earnings target over some short time horizon. The former predicts positive wage elasticities of labor supply, while an extreme form of the latter implies an elasticity of -1. The estimated wage elasticities are persistently negative, even after correcting for measurement error using instrumental variables. However, these findings are consistent with those in Camerer et al. (1997)'s study of New York City cab drivers.LABOUR ; INCOME ; MODELS ; WAGES

Financial Innovations And Endogenous Growth

This paper explores the channels through which innovations in the financial sector lead to economic growth. The channels identified are capital accumulation and technological innovation. The first is fulfilled by financial intermediaries which transform household savings into productive investment by firms, the second by venture capitalists which fund risky technological projects with high potential payoffs. The rate of financial innovation is determined by the amount of labor (or human capital) devoted to the sector as well as by spillovers from existing fi- nancial products. By embedding such a sector into the Romer (1990) - Jones (1995) and Lucas (1988) - Uzawa (1965) frameworks, it is shown that ultimately, financial innovations can only lead to long-run growth through its venture capital role. The transformative role of the financial sector only leads to temporary growth effects on the transitional path to the steady state.ECONOMIC GROWTH ; TECHNOLOGICAL CHANGE ; FINANCIAL ANALYSIS

Human Capital, Financial Innovations and Growth: A Theoretical Approach.

This paper examines the symbiosis between financial development and human capital accumulation in generating endogenous growth. We develop a theoretical model where human capital is a key factor in the creation of financial innovations, resulting in financial development which in turns facilitates the acquisition of new human capital.HUMAN CAPITAL ; ECONOMIC GROWTH ; FINANCIAL ASPECTS

Preventive effects of Spirulina platensis on skeletal muscle damage under exercise-induced oxidative stress

The effects of spirulina supplementation on preventing skeletal muscle damage on untrained human beings were examined. Sixteen students volunteered to take Spirulina platensis in addition to their normal diet for 3-weeks. Blood samples were taken after finishing the Bruce incremental treadmill exercise before and after treatment. The results showed that plasma concentrations of malondialdehyde (MDA) were significantly decreased after supplementation with spirulina (P < 0.05). The activity of blood superoxide dismutase (SOD) was significantly raised after supplementation with spirulina or soy protein (P < 0.05). Both of the blood glutathione peroxidaes (GP (x) ) and lactate dehydrogenase (LDH) levels were significantly different between spirulina and soy protein supplementation by an ANCOVA analysis (P < 0.05). In addition, the lactate (LA) concentration was higher and the time to exhaustion (TE) was significantly extended in the spirulina trail (P < 0.05). These results suggest that ingestion of S. platensis showed preventive effect of the skeletal muscle damage and that probably led to postponement of the time of exhaustion during the all-out exercise

Global Search for New Physics with 2.0/fb at CDF

Data collected in Run II of the Fermilab Tevatron are searched for indications of new electroweak-scale physics. Rather than focusing on particular new physics scenarios, CDF data are analyzed for discrepancies with the standard model prediction. A model-independent approach (Vista) considers gross features of the data, and is sensitive to new large cross-section physics. Further sensitivity to new physics is provided by two additional algorithms: a Bump Hunter searches invariant mass distributions for "bumps" that could indicate resonant production of new particles; and the Sleuth procedure scans for data excesses at large summed transverse momentum. This combined global search for new physics in 2.0/fb of ppbar collisions at sqrt(s)=1.96 TeV reveals no indication of physics beyond the standard model.Comment: 8 pages, 7 figures. Final version which appeared in Physical Review D Rapid Communication

Observation of Orbitally Excited B_s Mesons

We report the first observation of two narrow resonances consistent with states of orbitally excited (L=1) B_s mesons using 1 fb^{-1} of ppbar collisions at sqrt{s} = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. We use two-body decays into K^- and B^+ mesons reconstructed as B^+ \to J/\psi K^+, J/\psi \to \mu^+ \mu^- or B^+ \to \bar{D}^0 \pi^+, \bar{D}^0 \to K^+ \pi^-. We deduce the masses of the two states to be m(B_{s1}) = 5829.4 +- 0.7 MeV/c^2 and m(B_{s2}^*) = 5839.7 +- 0.7 MeV/c^2.Comment: Version accepted and published by Phys. Rev. Let

Search for a W' boson decaying to a bottom quark and a top quark in pp collisions at sqrt(s) = 7 TeV

Results are presented from a search for a W' boson using a dataset corresponding to 5.0 inverse femtobarns of integrated luminosity collected during 2011 by the CMS experiment at the LHC in pp collisions at sqrt(s)=7 TeV. The W' boson is modeled as a heavy W boson, but different scenarios for the couplings to fermions are considered, involving both left-handed and right-handed chiral projections of the fermions, as well as an arbitrary mixture of the two. The search is performed in the decay channel W' to t b, leading to a final state signature with a single lepton (e, mu), missing transverse energy, and jets, at least one of which is tagged as a b-jet. A W' boson that couples to fermions with the same coupling constant as the W, but to the right-handed rather than left-handed chiral projections, is excluded for masses below 1.85 TeV at the 95% confidence level. For the first time using LHC data, constraints on the W' gauge coupling for a set of left- and right-handed coupling combinations have been placed. These results represent a significant improvement over previously published limits.Comment: Submitted to Physics Letters B. Replaced with version publishe

Search for the standard model Higgs boson decaying into two photons in pp collisions at sqrt(s)=7 TeV

A search for a Higgs boson decaying into two photons is described. The analysis is performed using a dataset recorded by the CMS experiment at the LHC from pp collisions at a centre-of-mass energy of 7 TeV, which corresponds to an integrated luminosity of 4.8 inverse femtobarns. Limits are set on the cross section of the standard model Higgs boson decaying to two photons. The expected exclusion limit at 95% confidence level is between 1.4 and 2.4 times the standard model cross section in the mass range between 110 and 150 GeV. The analysis of the data excludes, at 95% confidence level, the standard model Higgs boson decaying into two photons in the mass range 128 to 132 GeV. The largest excess of events above the expected standard model background is observed for a Higgs boson mass hypothesis of 124 GeV with a local significance of 3.1 sigma. The global significance of observing an excess with a local significance greater than 3.1 sigma anywhere in the search range 110-150 GeV is estimated to be 1.8 sigma. More data are required to ascertain the origin of this excess.Comment: Submitted to Physics Letters

Search for new physics in events with opposite-sign leptons, jets, and missing transverse energy in pp collisions at sqrt(s) = 7 TeV

A search is presented for physics beyond the standard model (BSM) in final states with a pair of opposite-sign isolated leptons accompanied by jets and missing transverse energy. The search uses LHC data recorded at a center-of-mass energy sqrt(s) = 7 TeV with the CMS detector, corresponding to an integrated luminosity of approximately 5 inverse femtobarns. Two complementary search strategies are employed. The first probes models with a specific dilepton production mechanism that leads to a characteristic kinematic edge in the dilepton mass distribution. The second strategy probes models of dilepton production with heavy, colored objects that decay to final states including invisible particles, leading to very large hadronic activity and missing transverse energy. No evidence for an event yield in excess of the standard model expectations is found. Upper limits on the BSM contributions to the signal regions are deduced from the results, which are used to exclude a region of the parameter space of the constrained minimal supersymmetric extension of the standard model. Additional information related to detector efficiencies and response is provided to allow testing specific models of BSM physics not considered in this paper.Comment: Replaced with published version. Added journal reference and DO