  This note presents a combination of published and preliminary electroweak
results from the four LEP collaborations and the SLD collaboration which were
prepared for the 2001 summer conferences. Averages from Z resonance results are
derived for hadronic and leptonic cross sections, the leptonic forward-backward
asymmetries, the tau polarisation asymmetries, the b-bbar and c-cbar partial
widths and forward-backward asymmetries and the q-qbar charge asymmetry. Above
the Z resonance, averages are derived for di-fermion cross sections and
forward-backward asymmetries, W-pair, Z-pair and single-W production cross
section, electroweak gauge boson couplings, W mass and width and W decay
branching ratios. For the first time, total and differential cross sections for
di-photon production are combined. The main changes with respect to the
experimental results presented in summer 2000 are updates to the Z-pole heavy
flavour results from SLD and LEP and to the W mass from LEP. The results are
compared with precise electroweak measurements from other experiments. Using a
new evaluation of the hadronic vacuum polarisation, the parameters of the
Standard Model are evaluated, first using the combined LEP electroweak
measurements, and then using the full set of electroweak results.
