At the beginning, the article briefly describes the features of the marketing complex household goods. Also provides an overview of some aspects of the market for indoor air purifiers. The specific subject of the study was the process of consumer choice of household appliances for cleaning air in living quarters. The aim of the study was to substantiate and develop a computer model for evaluating by the potential buyers devices for air purification in conditions of vagueness and ambiguity of their consumer preferences.
An increasing number of consumers shift their buying activities from physical stores to retail websites. The reasons for this change are lower prices, time savings and a wider selection of products and services available on websites (Brunner et al., 2014). At the end of 2014, more than 3 billion people used Internet. In Europe 565 million people already use the Internet (79% of the population), and 47% make online purchases (Ecommerce Europe, 2014). Despite efforts by B2C e-commerce firms to offer high-quality services, providing a failure-free service proves almost impossible. Depending on how firms handle service recovery, results may vary massively: from losing an angry customer to retaining a satisfied who may still be willing to purchase again in the future.
Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights.