... based on the assumption that humans have a set of natural needs and that these form the biological determinants of our behaviour. Physiological theorists such as Maslow, Hertzberg, McGregor and McClelland suggest that human beings are just reacting to their natural needs in such a way to satisfy them (Hume, 1995). Maslow's hierarchy of needs theory is probably the most popular amongst theories of physiological motivation. It suggests that each human being has a series of innate needs. These are organized in a series of levels, starting with physiological and safety needs, followed by social needs. Higher levels needs concern the self (self- esteem, self- fulfilment or self-actualization) and they can only be fulfilled once the lower needs are satisfied (Maslow, 1954). According to Maslow, people are motivated by money, status and power only at lower and middle levels of the organization. However, Maslow's theory is not based on ...

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