with other determinations [@peakcockdodds]. Attempts were also made to study the small-scale velocity field by analyzing the redshift-space distortions. However, the small number of independent structures within the sampled volume made the results extremely sensitive to shot-noise [@marzke].

These early surveys were followed by the considerably deeper LCRS [@lcrs] which demonstrated unambiguously that the largest scales of inhomogeneities had finally been reached. Quantitative analyses of the LCRS, by and large confirmed earlier statistical results, albeit with considerably smaller errors. More recently, the first results of the 2dFGRS project have become available. The survey consists of over 100,000 galaxies to a depth comparable to the LCRS, allowing for precise measurements of redshift-space distortions and large-scale power spectrum. Analysis of the redshift distortions caused by large-scale infall velocities yields a value of $\beta_o=0.43$ [@peakcock2df], where $\beta_o$ refers to optical galaxies. Assuming a relative bias $b_o/b_I\sim 1.3$ between optical and galaxies this implies $\beta_I\sim0.56$. The derived galaxy power-spectrum [@percival] was found to be well-represented by a shape parameter $\Gamma=0.2$, in good agreement with previous determinations. These results provide important constraints on the mass power-spectrum which can later be compared with those obtained using cosmic flows to test for consistency.

The second class of 