European Journal of Operational Research 68 (1993) 431—432 North-Holland Contents Volume 68 Developments in implementable retailing research (Invited Review) A. Mercer 9 A methodology for competitiveness analysis and strategy formulation in glass industry M. Oral 23 Performance characteristics of stochastic integrated production—distribution systems D.F. Pyke and M.A. Cohen 49 Models for evaluating the performance of serial and assembly MRP systems A.G. Lagodimos 69 The throughput rate of multistation unreliable production lines C. Heavey, H.T. Papadopoulos and J. Browne 90 Stochastic analysis of a dependent parallel system M. Pijnenburg, N. Ravichandran and G. Regterschot 105 Composing batches with yield uncertainty C.S. Tang 120 Optimal ordering policies with two suppliers when lead times and demands are all stochastic H.-S. Lau and L.-G. Zhao 134 Efficient post-optimization analysis procedure for the dynamic lot-sizing problem M. Diaby 139 A conditional effect of autocorrelated demand on safety stock determination H. Marmorstein and W. Zinn OR Software, H. Thiriez (ed.) Chaos in nonlinear dynamical systems exemplified by an R&D model (Invited Review) G. Feichtinger and M. Kopel 160 An integrated multiobjective planning model: A case study of the Zambian copper mining industry IC. Ehie and C.O. Benjamin 173. A multiobjective approach to vendor selection C.A. Weber and J.R. Current 185 Optimal scheduling of purchasing orders for large projects B. Ronen and D. Trietsch 196 Application of the scenario aggregation approach to a two-stage, stochastic, common component, inventory problem with a budget constraint H. Jonsson, K. Jornsten and E.A. Silver 212 Due date assignment procedures with dynamically updated coefficients for multi-level assembly job shops N.R. Adam, J.W.M. Bertrand, D.C. Morehead and J. Surkis 228 The analysis of an unreliable two-machine production line with random processing times Y. Hong and D. Seong 236 Inspection interval for maximum future reliability using the delay time model P. Cerone 251 Sequencing of inspection operations subject to errors T. Raz and D. Bricker 265 Algorithms for computerized inspection of rectangular and square shapes J_A. Ventura and Z.-A. Dung 278 Expert systems applications development research in business: A selected bibliography (1975-1989) S.B. Eom, S.M. Lee and A. Ayaz 291 Forecasting with scenarios (Invited Review) D.W. Bunn and A.A. Salo 304 Stock index futures arbitrage in Finland: Theory and evidence in a new market V. Puttonen 318 On the individual and incremental information content of accrual earnings, cash flows and cash dividends in the Finnish stock market T. Martikainen, T. Rothovius and P. Yli-Olli 0377-2217 /93/$06.00 © 1993 - Elsevier Science Publishers B.V. All rights reserved Contents Volume 68 Cost analysis in the time domain J.D. Camm, T.R. Gulledge and N.K. Womer An interactive procedure for multiple objective integer linear programming problems J.N. Karaivanova, S.C. Narula and V. Vassilev A restricted class of multiobjective linear fractional programming problems D. Dutta, J.R. Rao and R.N. Tiwari Approximating the noninferior set in multiobjective linear programming problems R.S. Solanki, P.A. Appino and J.L. Cohon Use of reference points for MOLP problems analysis B. Metev and I. Yordanova Duality theory for infinite-dimensional multiobjective linear programming A. Balbas and A. Heras Some experiments with simulated annealing techniques for packing problems K.A. Dowsland An algorithm for the 2D guillotine cutting stock problem B. MacLeod, R. Moll, M. Girkar and N. Hanifi An exact search for the solution of the surrogate dual of the 0-1 bidimensional knapsack problem A. Fréville and G. Plateau A variation of the assignment problem S. Geetha and K.P.K. Nair On geometric programming problems having negative degrees of difficulty D.L. Bricker, J.C. Choi and J. Rajgopal Contents Volume 68