  We use data from the MeerTime project on the MeerKAT telescope to ask whether
the radio emission properties of millisecond pulsars (MSPs) and slowly
rotating, younger pulsars (SPs) are similar or different. We show that the flux
density spectra of both populations are similarly steep, and the widths of MSP
pulsar profiles obey the same dependence on the rotational period as slow
pulsars. We also show that the polarization of MSPs has similar properties to
slow pulsars. The commonly used pseudo-luminosity of pulsars, defined as the
product of the flux density and the distance squared, is not appropriate for
drawing conclusions about the relative intrinsic radio luminosity of SPs and
MSPs. We show that it is possible to scale the pseudo-luminosity to account for
the pulse duty cycle and the solid angle of the radio beam, in such a way that
MSPs and SPs do not show clear differences in intrinsic luminosity. The data,
therefore, support common emission physics between the two populations in spite
of orders of magnitude difference in their period derivatives and inferred,
surface, dipole magnetic field strengths.
