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We quantify the accuracy with which the cosmological parameterscharacterizing the energy density of matter (\Omega_m), the amplitude of thepower spectrum of matter fluctuations (\sigma_8), the energy density ofneutrinos (\Omega_{\nu}) and the dark energy equation of state (w_0) can beconstrained using data from large galaxy redshift surveys. We advocate a jointanalysis of the abundance of galaxies, galaxy clustering, and the galaxy-galaxyweak lensing signal in order to simultaneously constrain the halo occupationstatistics (i.e., galaxy bias) and the cosmological parameters of interest. Weparameterize the halo occupation distribution of galaxies in terms of theconditional luminosity function and use the analytical framework of the halomodel described in our companion paper (van den Bosch et al. 2012), to predictthe relevant observables. By performing a Fisher matrix analysis, we show thata joint analysis of these observables, even with the precision with which theyare currently measured from the Sloan Digital Sky Survey, can be used to obtaintight constraints on the cosmological parameters, fully marginalized overuncertainties in galaxy bias. We demonstrate that the cosmological constraintsfrom such an analysis are nearly uncorrelated with the halo occupationdistribution constraints, thus, minimizing the systematic impact of anyimperfections in modeling the halo occupation statistics on the cosmologicalconstraints. In fact, we demonstrate that the constraints from such an analysisare both complementary to and competitive with existing constraints on theseparameters from a number of other techniques, such as cluster abundances,cosmic shear and/or baryon acoustic oscillations, thus paving the way to testthe concordance cosmological model.

Cosmological Constraints from a Combination of Galaxy Clustering & Lensing -- II. Fisher Matrix Analysis