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Theories of motivation
Maslow’s needs hierarchy
Developed in the 1940's, Abraham Maslow's needs hierarchy is at the basis of studies into motivation and is the most well-known.
Maslow's approach to need fulfillment is to place the human needs into a hierarchy of five basic categories: physiological, safety, belongingness, esteem, and self-actualisation. The theory posits that while we are motivated by several needs simultaneously, the strongest motivator will be the lowest unsatisfied needs at the time. Once these lower-level needs are satisfied, the individual would then be motivated to fulfil the next level of needs in the hierarchy, and would continue to be so, even if this was never fulfilled.[2][3][4]
However, this theory has not found much scientific support.[5][6] Subsequent theories of motivation sought to address criticisms of this theory, yet it has continued to be very influential.
ERG theory
ERG theory recategorised Maslow's needs hierarchy into three basic needs: existence, relatedness and growth.
Existence needs address physiological concerns, such as hunger, shelter and self-defence. Relatedness addresses social concerns, such as developing networks and identifying with social groups. Growth needs, in this theory reached when existence and relatedness were already addressed, include further learning and self-actualisation.
The main development of the ERG theory from Maslow was that whilst the individual would continue to develop higher needs once lower needs were met, they could also regress back to needing to being motivated by their lower needs if unable to fulfil higher ones.[7].
Four-drive theory
Four-drive theory is a holistic and humanistic theory of motivation by Paul Lawrence and Nitin Nohria. It organises drives into four categories: the drive to acquire, to bond, to learn and to defend. These drives are considered innate and universal, independent of one another and are "proactive", in that the individual regularly tries to fulfil them.[8]
The drive to acquire is the drive to seek, take, control and retain objects and personal experiences. Four-drive theory states that the drive to acquire is insatiable, theorising that the purpose of human motivation is not just for psychological fulfilment but also to achieve a higher position than others. This drive fuels competitive behaviours.
The drive to bond is the social factor, the intention to form relationship with others and develop mutual caring commitments. This component of the theory aligns with social identity theory, explaining why an individual chooses to form their social identity by aligning their self image with that of various social groups. It motivates cooperation.
The drive to learn is the drive to satisfy curiosity and to understand ourselves and the world around us. It occurs when observing something which is unknown or inconsistent with the individual's existing knowledge set, creating a knowledge gap which they will then seek to fill. The result of this drive to learn fulfils the needs of growth and self-actualisation.
The drive to defend is a self-protective drive both physically and socially. It originates from the 'fight-or-flight' response when responding to dangerous situations but also involves defending relationships, acquisitions and belief systems. Unlike the other three drives, which are proactive, the drive to defend is reactive and is triggered by perceived threats.
While the four-drive theory incorporates much solid evidence of the existence of the four innate drives and the interaction of emotions and cognitions, this is still a theory in development. Whilst it accommodates the idea of learned needs, it does not fully explain them.
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