TY - JOUR AU - Harrigan,James AU - Venables,Anthony J. TI - Timeliness, Trade and Agglomeration JF - National Bureau of Economic Research Working Paper Series VL - No. 10404 PY - 2004 Y2 - April 2004 UR - http://www.nber.org/papers/w10404 L1 - http://www.nber.org/papers/w10404.pdf N1 - Author contact info: James Harrigan Department of Economics University of Virginia P.O. Box 400182 Charlottesville, VA 22904-4182 Tel: 434-243-8354 Fax: 434-982-2904 E-Mail: harrigan@nber.org Anthony Venables Department of Economics University of Oxford Manor Road Building Manor Road Oxford OX1 3UQ, United Kingdom and CEPR E-Mail: tony.venables@economics.ox.ac.uk AB - An important element of the cost of distance is time taken in delivering final and intermediate goods. We argue that time costs are qualitatively different from direct monetary costs such as freight charges. The difference arises because of uncertainty. Unsynchronised deliveries can disrupt production, and delivery time can force producers to order components before demand and cost uncertainties are resolved. Using several related models we show that this generates hitherto unexplored incentives for clustering. If final assembly takes place in two locations and component production has increasing returns to scale, then component production will tend to cluster around just one of the assembly plants. ER -