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76 Dima, I.C.; Vokorokosova, R.; Pachura , P.; Sandu, M. “system and situational approaches may be useful for integrating all previous streams in management” (Griffin, 1998), which have been developed since the neoclassical economic thought appeared in the 19 th century. Similarly, J. Stoner states that “both approaches may constitute ways to enable integration in the process of development of management studies” (Stoner & Wankel, 1992). System structure of strategic management is based on a paradigm concerning harmonizing organization’s activities with its environment and understanding activities in a context of feedback loop with the environment. The importance of the system approach is based on a postulate of a complete investigation of objects treated as open systems, i.e. interacting with the environment (Koźmiński & Piotrowski, 1998). Simultaneously there exist a strive to integrate various concepts through fighting interdisciplinary obstacles as well as through use of analogies and similarities to construct models (Pachura, 1992). Certain researches present an opinion that the system approach “will gradually lead to the integration of all other approaches in the theory of management” (Stoner & Wankel, 1992). REFERENCES: [1]. Blaik, P. (2001) Logistyka, PWE [2]. Cartesius (2002) Discourse on Method, Wyd. Zielona Sowa, Kraków [3]. Decoster, D.P. (2000) L’innovation au changement: principes du developpement local, UVCW, Namur [4]. Dima, I.C., coord. (2010) Using elements of logistics in the operational management, Editura Presov, Slovacia [5]. Dima, I.C., coord. (2010) Using multiservice of industrial operational management, Editura Czestochowa University of Technology, Polonia [6]. Glinski, B.; Kuc, B.; Szczepankowski, P. (1996) Zarządzanie strategiczne, Key Text, W- wa [7]. Griffin, R. (1998) Podstawy zarządzania organizacjami, PWE, W-wa [8]. Koźmiński, A.; Piotrowski, W. (1998) Zarządzanie teoria i praktyka, PWN, W-wa [9]. Krzyżanowski, A. (1999) O podstawach zarządzania organizacjami inaczej: paradygmaty, modele, filozofia, metodologia, dylematy, trendy., Wyd. Naukowe PWN, W-wa [10]. Lewandowski, J. (1998) Zarządzanie jakością. Jakość, ergonomia, bezpieczeństwo pracy, ochrona środowiska, Wyd. Marcus, Łódź [11]. Nowicka-Skowron, M. (2002) Integrated management in enterprises and reconversion, Technical-economic aspects of industrial reconversion, Virton [12]. Obłój, K. (1987) Zarządzanie strategiczne, UW, W-wa [13]. Pachura, P. (1992) Elements of the systemic approach in the reconversion process, in: Technical aspects of industrial reconversion, Virton 2002: eds: Nowicka-Skowron M., W-wa [14]. Stoner, J.; Wankel, Ch. (1992) Kierowanie, PWE, W-wa [15]. Welfe, W. (1996) Średniookresowy ekonometryczny model gospodarki narodowej Polski w warunkach transformacji, Absolwent, Łódź [16]. Agenda 21, Chapt. 10, Conception integrée de la planification et de la gestion, UN [17]. (2000) Integrated Management Plan, US dep. of Energy, Strategic management plan, Nevada [18]. (1982) The System Approach to Societal Problems, eds: S. Stephanou, Danies Spencer Pub. Malibu
Annals of the University of Petroşani, Economics, 11(1), 2011, 77-88 77 THE USE OF RANKING SAMPLING METHOD WITHIN MARKETING RESEARCH CODRUŢA DURA, IMOLA DRIGĂ * ABSTRACT: Marketing and statistical literature available to practitioners provides a wide range of sampling methods that can be implemented in the context of marketing research. Ranking sampling method is based on taking apart the general population into several strata, namely into several subdivisions which are relatively homogenous regarding a certain characteristic. In fact, the sample will be composed by selecting, from each stratum, a certain number of components (which can be proportional or non-proportional to the size of the stratum) until the pre-established volume of the sample is reached. Using ranking sampling within marketing research requires the determination of some relevant statistical indicators - average, dispersion, sampling error etc. To that end, the paper contains a case study which illustrates the actual approach used in order to apply the ranking sample method within a marketing research made by a company which provides Internet connection services, on a particular category of customers – small and medium enterprises. KEY WORDS: market analysis; ranking sampling; proportional survey; nonproportional survey. JEL CLASIFICATION: C83, M31. 1. INTRODUCTION Needs of rapidly growing information and the efficiency with which it must be obtained and analyzed have defined selective research as a quasi-general approach used in marketing studies. Selection offers the opportunity to obtain information relating to a general group by investigating only some of the components of the latter. Therefore, choosing and implementing an appropriate sampling technique, in relation to the objectives of each research project, becomes the key element that makes a selective research successful. The arguments which recommend selective research * Assoc. Prof., Ph.D., University of Petrosani, Romania, codrutadura@yahoo.com Lecturer, Ph.D., University of Petrosani, Romania, imola.driga@gmail.com
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