We present quantum Monte Carlo results for the Hubbard model on a ladder using the restructuring method which employ eigenstates of two-site system on a rung to construct a complete set. From technical reasons we concentrate on the case in which the hopping along the leg is much less than the hopping on the rung. We observe the ground state of the half-filled system is made of singlet-like stat...

The Fama-MacBeth [1] cross-sectional regression technique is a mainstay of empirical finance. Yet researchers and practitioners are forced to reinvent the wheel when implementing this method because the original data and code are not available. Some might think, “Fama and MacBeth’s description of what they did is clear enough and it’s easy to program this method.” Yet, anyone who possesses even...