firms invest in their learning activities to improve their innovative efforts. these kinds of activities are either internal or external. knowledge which flows among local actors is one of the external learning factors. spontaneous knowledge flows among firms without any compensation or with compensation less than the real value is called knowledge spillover. this paper analyzes the effect of k...

In knowledge-based economy, knowledge has a public good and non-rivalry nature. Firms build their own knowledge stock not only by means of internal R&D and collaboration with partners, but also by means of previously spilled over knowledge of other firms and public research laboratories (such as universities). Firms based on their absorptive capacity, and level of intra-industry and extra-indus...

After a long dormant period, Lower Sixth Avenue in New York has undergone a rapid revitalisation. We show that a simple search theoretic model with information spillovers can explain both the period of underuse and the rapid turnaround. The model reduces to a simple equation, which allows us to do comparative statics on the duration of vacancies. We show how the solution reacts to changes in ma...

Taxing Childcare: Effects on Family Labor Supply and Children Previous studies report a wide range of estimates for how female labor supply responds to childcare prices. We shed new light on this question using a reform that raised the prices of public daycare. Parents respond by reducing public daycare and increasing childcare at home. Parents also reduce informal childcare indicating that pub...

We consider how past, current, and future competition within an elimination tournament a§ect the probability that the stronger player wins. We present a two-stage model that yields the following main results: (1) a shadow e§ectóthe stronger the expected future competitor, the lower the probability that the stronger player wins in the current stage and (2) an e§ort spillover e§ectóprevious e§ort...

We investigate the impact of knowledge spillovers and R&D cooperation on innovation activities in three German regions. We begin by estimating the knowledge-production function in order to test for interregional difference with regard to the efficiency of innovation activities. In a second step, we analyze the contribution of spillovers from R&D effort of other private firms and of public resea...

This paper deals with a general version of a two-stage model of R&D and product market competition. We provide a thorough generalization of previous results on the comparative performance of noncooperative and cooperative R&D, dispensing in particular with ex-post firm symmetry and linear demand assumptions. We also characterize the structure of profit-maximizing R&D cartels where firms competi...

This paper studies the relationship between multinational firm proximity and the formation of new export connections by private Chinese exporters between 1997 and 2003. The results indicate that growth in the presence of multinational firms is positively associated with the formation of new trade by local Chinese firms. Further exploration suggests that information spillovers may drive this res...

This paper examines the importance of “spillover” effects of changes in industry concentration among vertically related industries over the period 1978-2006. Specifically, we investigate the timing, magnitude, and direction of the relation between changes in industry concentration across vertically related industries. We document that changes in customer industry concentration are positively re...