1. Introduction The dynamically growing organic food market needs to implement such marketing tools that take into consideration the specific characteristics of this market. In order to create a competitive advantage of the product offer, the concept of ecological attributes of the food is introduced (product features which fulfill consumers' needs). The organic food has features which can be divided into individual attributes --personal (private) and social attributes--environmental (public). The group of individual features perceived by consumers of organic food consists of such characteristics as taste, health value, freshness (Misra, Huang and Otto, 1991) or utility value of these products (Zanoli and Naspetti, 2002). The features of the product described as individual attributes (private) are valued because of different, sometimes egoistic, reasons imposed by the consumers' and their families' needs (Grzybowska-Brzezinska, 2008). The social attributes of organic food include aspects of the environmental protection or respecting the well-being of animals in organic farming, both of which are considered non-utilitarian characteristics, and the fact that they are perceived by consumers' results from their altruism determining their behavior (Luczka-Bakula, 2007). This means that organic food is seen in a wider context of the natural environment, its state and its relation to agricultural production methods and health (Newerli-Guz and Smiechowska, 2004) which may result from consumers' environmental awareness, more aggressive promotion of health, social marketing of companies, consumers' and producers' civic virtue. All these aspects add to the image of organic food and, indirectly, their consumers and producers. Another take on the characteristics of the process of selecting food products by the target market involves a phenomenon in which the shaping of consumer preferences is influenced by the food product attributes, grouped in three categories (Wierenga, 1983) and defined as sensory, instrumental or symbolic, which may be located in particular layers of a product (outside and inside). The first defined group of sensory attributes involves the physical features such as taste, smell, color and appearance (Wierenga, 1983; Peattie, 1995; Grzybowska-Brzezinska, 2013a). Functional (also instrumental) attributes are features which fulfill consumers' physiological needs, such as supply energy, help build and maintain in good condition cells and body organs. The composition, presence of certain nutrients (carbohydrates, proteins, vitamins), type of ingredients, presence or absence of preservatives or additives are all part of this group of attributes. The features of a product related to its utilitarian value, like the size of packaging, easy preparation, preservation method may also be classified as functional attributes (Grzybowska-Brzezinska, 2013a; Wierenga, 1983). Consumption of certain products can also be related to prestige (buying certain products that are concordant with the self image of a consumer) or it can help convey a message about a consumer to other members in their community (consumption for show). Symbolic functions of a product are specific and will depend on social culture, subculture or social class, so the process of building attributes of prestige is related to the position of the brand of the product, the position of the manufacturer and the communication method between the company and the selected segment of consumers. The price of the product and the place of purchase contribute to engineering the expressive value of a product (Wierenga, 1983; Lin, 2002; Miyazaki, Grewal and Goodstein, 2005). Even though attributes connected with organic food may be difficult for consumers to verify organoleptically or visually, most of them buy organic food products because they understand that these products have exceptional (and sometimes better) attributes compared to their conventionally produced counterparts (Vindigni, Janssen and Jager, 2002). …
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