Competitive manufacturing strategies for the manufacturing industries in Turkey

In this study, results of the research into competitive manufacturing strategies of companies in four different sector studies covering 82 companies from the electronics, cement, automotive manufacturers, and appliances part and component suppliers in Turkey are presented. The data used in the study are gathered by conducting four sector surveys in 1997 and 1998 using a questionnaire supported by some follow-up interviews and site visits. A competitive manufacturing strategy is represented here by its components being the competitive priorities, the manufacturing objectives, and the action plans the companies plan to adopt in the near future. The results indicate that the manufacturing industry in Turkey bases its competition strategy mainly on low price, although there is a growing trend towards increasing emphasis on product differentiation. Quality and quality related issues constitute the top priority issues for the manufacturing industries in Turkey with Total Quality Management being the most preferred action plan

An assessment of supply chain and innovation management practices in the manufacturing industries in Turkey

This paper aims at assessing the supply chain and innovation management in the manufacturing industries in Turkey on an empirical basis. The assessments presented are based on parts of the data and information collected through the execution of the Competitive Strategies and Best Practices Benchmarking Questionnaire in 82 companies from four sectors of the manufacturing industries in Turkey. Results of these sectoral benchmarking studies reported elsewhere indicate the need of adopting product differentiation particularly through more knowledge intensive products as the dominant competitive strategy and also the need for improvement in various areas of supply chain as well as innovation management. In this paper, these issues are analysed through the survey results and some conclusions are drawn. Several policy measures applicable in near future are suggested for improving the areas found in need of improvement

Determination of the bundle price for digital information goods

The fast emergence of Internet as a media to distribute digital information goods created many new opportunities for the packaging and pricing of these goods. The pricing of information goods introduces a challenge since the cost structure of information goods differs from that of conventional physical goods in that they can be costly to introduce but are relatively cheap to reproduce. The bundling strategy for digital information goods helps producers to extract more value from customers and can result in cost savings due to the presence of economies of scale. This study aims to determine the optimum price a producer of digital information goods has to charge for a bundle in order to maximize his gross margin. The bundle pricing model is constructed for both uniform and exponential distributions of the fraction of information goods in the bundle that has positive value for the customers

An equitable approach to the payment scheduling problem in project management

This study reports on a new approach to the payment scheduling problem. In this approach, the amount and timing of the payments made by the client and received by the contractor are determined so as to achieve an equitable solution. An equitable solution is defined as one where both the contractor and the client deviate from their respective ideal solutions by an equal percentage. The ideal solutions for the contractor and the client result from having a lump sum payment at the start and end of the project respectively. A double loop genetic algorithm is proposed to solve for an equitable solution. The outer loop represents the client and the inner loop the contractor. The inner loop corresponds to a multi-mode resource constrained project scheduling problem with the objective of maximizing the contractor's net present value for a given payment distribution. When searching for an equitable solution, information flows between the outer and inner loops regarding the payment distribution over the event nodes and the timing of these payments. An example problem is solved and analyzed. A set of 93 problems from the literature are solved and some computational results are reported

Benchmarking best manufacturing practices: a study into four sectors of Turkish industry

Reports on a benchmarking study conducted to quantify how well companies operating in various sectors of Turkish industry match up to best practice, both in the practices they adopt and in the operational outcomes that result, and to test the hypothesis that the closer a company is to best practice, the more likely it is for that company to achieve higher business performance. The survey conducted in 1997 and 1998 included 82 companies from the Turkish electronics, cement, automotive sectors and part and component suppliers to the appliance industry. For data gathering. employs the Competitive Strategies and Best Practices Benchmarking Questionnaire, supported ly, some follow-up interviews and one-day site visits. Classifies two small groups of companies as leaders and laggers, depending on how close they were to best practice. Shows that the leaders have performed better than the laggers in adopting best manufacturing practices and in the achievement of high performance La,els. The leaders also have achieved substantially higher business performance than the laggers. Furthermore, observes that large-sized companies outperform the rest both in terms of their success in implementing best manufacturing practices and in achieving high operational outcomes and that there is no appreciable difference between industrial sectors in implementing best manufacturing practices and in achieving high operational outcomes

Multi-project scheduling with 2-stage decomposition

A non-preemptive, zero time lag multi-project scheduling problem with multiple modes and limited renewable and nonrenewable resources is considered. A 2-stage decomposition approach is adopted to formulate the problem as a hierarchy of 0-1 mathematical programming models. At stage one, each project is reduced to a macro-activity with macro-modes resulting in a single project network where the objective is the maximization of the net present value and the cash flows are positive. For setting the time horizon three different methods are developed and tested. A genetic algorithm approach is designed for this problem, which is also employed to generate a starting solution for the exact solution procedure. Using the starting times and the resource profiles obtained in stage one each project is scheduled at stage two for minimum makespan. The result of the first stage is subjected to a post-processing procedure to distribute the remaining resource capacities. Three new test problem sets are generated with 81, 84 and 27 problems each and three different configurations of solution procedures are tested

Innovation performance and competitive strategies in the Turkish manufacturing industry

In this paper, we report on empirical investigation within the context of the Innovations in Manufacturing Industries in Turkey Study 2004/2005. The data was gathered in nine different cities in Turkey during the period August 2004 – January 2005. The survey was conducted through face-to-face interviews due to the complex nature of the survey and was implemented in 135 manufacturing firms operating in four sectors: Textiles, chemicals, food, and metal. The study has been an extension of the European Manufacturing Survey 2004 (EMS 2004) coordinated by the Fraunhofer Institute for Systems and Innovation Research and covering nine countries: Germany, Turkey, Austria, Switzerland, France, Slovenia, Croatia, Italy, and United Kingdom. An extended version of the questionnaire form used in EMS 2004 has been employed. Some of the basic results concerning competitive priorities, new product development, and operations management are presented

Dynamic resource constrained multi-project scheduling problem with weighted earliness/tardiness costs

In this study, a conceptual framework is given for the dynamic multi-project scheduling problem with weighted earliness/tardiness costs (DRCMPSPWET) and a mathematical programming formulation of the problem is provided. In DRCMPSPWET, a project arrives on top of an existing project portfolio and a due date has to be quoted for the new project while minimizing the costs of schedule changes. The objective function consists of the weighted earliness tardiness costs of the activities of the existing projects in the current baseline schedule plus a term that increases linearly with the anticipated completion time of the new project. An iterated local search based approach is developed for large instances of this problem. In order to analyze the performance and behavior of the proposed method, a new multi-project data set is created by controlling the total number of activities, the due date tightness, the due date range, the number of resource types, and the completion time factor in an instance. A series of computational experiments are carried out to test the performance of the local search approach. Exact solutions are provided for the small instances. The results indicate that the local search heuristic performs well in terms of both solution quality and solution time

Turkey's Reform Effort Reconsidered, 1987-2004

This article aims to develop a coherent explanation of the impact of the EU on Turkey’s politics between 1987 (the year Turkey applied for EU membership) and 2004, providing a more profound analysis of Turkish political transformation within the framework of its relations with the EU. It integrates Moravcsiks’ work on the human rights regime in post-war Europe with Risse’s theory on communicative action in world politics to provide an alternative explanatory framework for recent political transformation in Turkey. It will be argued that the main dynamics driving recent democratisation in Turkey were its newfound location within the European human rights regime—a result of having been granted the right to individual petition to the European Court of Human Rights just before its 1987 membership application—and the increasing power of European argument as an alternative way of resolving domestic political conflicts in Turkey.democratization; Europeanization; fundamental/human rights

Resource preference based improvement heuristics for resource portfolio problem

The multi-project problem environment under consideration involves multiple-projects with activities having alternative execution modes, a general resource budget and a resource management policy that does not allow sharing of resources among projects. The multi-project scheduling model for this problem environment is called Resource Portfolio Problem. There are three basic conceptual problems in RPP: (i) determining the general resource capacities from the given general resource budget (general resource capacities determination); (ii) dedication of the general resource capacities to projects (resource dedication) and finally (iii) scheduling of individual projects with the given resource dedications. In this study, different preference based improvement heuristics are proposed for general resource capacities determination and resource dedication conceptual problems. For general resource capacities determination, the current general resource capacity values are changed according to the resource preferences such that the resulting capacity state would be more preferable. Similarly for resource dedication, resource dedication values of projects are changed according to the preferences of projects for resources such that the resulting resource dedication state would be more preferable. These two improvement heuristics separates and couples the conceptual problems. Different preference calculation methods are proposed employing Lagrangian relaxation and linear relaxation of MRCPSP formulation