  Angular correlations of partons have been derived for high energy jets in
QCD. Interesting new scaling properties with two redundant variables (jet
energy $P$ and jet opening angle $\Theta$) emerge which can be tested within a
parton-hadron duality picture. Recent results from LEP support the scaling in
$\Theta$; the scaling in both $P$ and $\Theta$ could be tested with jets from
deep inelastic scattering or with high $p_T$ jets.
