text: as the presence of SSC versus ERC. Here, we use sub- 
  millimeter luminosity as a proxy for jet power, which 
  is correlated with the integrated luminosity of the syn- 
  chrotron component. Elevated γ-ray luminosity with 
  respect to the synchrotron component (which is often 
  seen in FSRQs) suggests the upscattering of external 
  photons oﬀ the synchrotron-emitting electrons. These 
  objects should occupy the upper right of the ratio/jet 
  power plot, and BL Lacs, which generally exhibit com- 
  ponents with roughly comparable luminosities, should 
  occupy the lower left. It is clear from the ﬁgure, how- 
  ever, that many FSRQs exhibit ratios similar to those 
  of the BL Lacs and vis versa. 
  
  low luminosity ratios and high luminosity, which sug- 
  gest they may be undergoing the same changes as 3C 
  454.3. A possible interpretation of the elevated lumi- 
  nosity ratios observed in some BL Lacs objects is that 
  there has been a dramatic increase in γ-ray luminos- 
  ity due to ERC, which would not be reﬂected in the 
  synchrotron component. 
  
  **5. CONCLUSIONS**