  he relationship between photoemission spectra of high-$T_{\textrm{c}}$
cuprates and their thermodynamic and transport properties are discussed. The
doping dependence of the expected quasi-particle density at the Fermi level
($E_\mathrm{F}$) are compared with the electronic specific heat coefficient
$\gamma$ and that of the spectral weight at $E_\mathrm{F}$ with the in-plane
and out-of-plane superfluid density. We have estimated the electrical
resistivity of underdoped cuprates from the momentum distribution curve (MDC)
at $E_\mathrm{F}$ in the nodal direction. The temperature dependence of the MDC
width is also consistent with that of the electrical resistivity.
