This discussion paper resulted in a publication in the <A href="http://www.sciencedirect.com/science/article/pii/S0014292112001493">'European Economic Review'</A> 2013, 58, 31-57.<P> In this paper, we use a recent policy change in the Netherlands to study how changes in search requirements for the older unemployed affect their transition rates to employment, early retirement...</p></a>

The risk-pooling effect has been documented to benefit inventory systems by reducing the need for safety stock and consequently lowering costs such as inventory holding and shortage penalty. In this paper, we propose a new approach, called "demand reshape," to take advantage of the risk-pooling...

Tastes and technology are the ultimate givens of standard economics. Their interaction is mediated by the marginal principle. This approach is unsuitable to explain the nature and magnitude of overall profits and their distribution within the business sector. The present paper therefore takes a...

Driven by market opening and increased competition from electronic communication, postal operators have started extending their scope of business by offering hybrid mail services in addition to physical mail conveyance. This paper discusses commercial and regulatory aspects of reverse hybrid...

We empirically investigate the pattern of complementarity between four organizational practices. Firm-level data were drawn from the Community Innovation Survey (CIS) carried out in 2008 in Luxembourg. Supermodularity tests confirm the crucial role of organizational innovation in raising...