the central quasars. We infer that the satellite fraction (i.e. the fraction of quasars hosted by satellite galaxies in the halo) for the DR7 quasars ($\left<z\right>=1.4$) is $0.008^{+0.008}_{-0.005}$ and the host halo mass scale for the central and satellite quasars is $10^{12.36\pm0.87}$ M$_{\odot}$ and $10^{13.60\pm0.38}$ M$_{\odot}$, respectively. At a median redshift of 2.5, the satellite fraction of the DR9 quasars is $0.065^{+0.021}_{-0.031}$ and the host halo mass scale for the central and satellite quasars is $10^{12.29\pm0.62}$ M$_{\odot}$ and $10^{12.82\pm0.39}$ M$_{\odot}$, respectively. Thus, the typical halo environment of the SDSS Type 1 quasars is found to be similar to that of DSFGs over the redshift range probed, which supports the generally accepted view that dusty starburst and quasar activity are evolutionarily linked phenomena.'
author:
- '\'
date: 'Accepted . Received ; in original form '
title: 'The co-evolution of black hole growth and star formation from a cross-correlation analysis between quasars and the cosmic infrared background'
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submillimetre: galaxies – quasars: general – galaxies: evolution – galaxies: haloes – galaxies: high-redshift – quasars: supermassive black holes

INTRODUCTION
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Quasars, powered by accretion of material onto the central supermassive black holes (SMBHs) of active galaxies, are among the most luminous objects in 