The nesting problem is a two-dimensional cutting and packing problem where the small pieces to cut have irregular shapes. A particular case of the nesting problem occurs when congruent copies of one single shape have to fill, as much as possible, a limited sheet. Traditional approaches to the...

This paper uses an output-oriented stochastic distance function to compute defense contractors' technical efficiency as a measure of performance. Then, nesting a market structure and conduct equation into the frontier, we identify firm and industry factors that affect the observed inefficiency...

This paper analyses the main drivers of R&D investment in the Spanish defence sector at the firm level. In particular, we analyse the factors influencing the decision to innovate or not, and those that affect the relative amount of resources devoted to the innovative process. Using data from the...