The framework is really relevant to answer this question as many theories have been applied in different contexts (e.g. service failure and recovery, customer satisfaction, pro-environmental behavior): attribution theory, fairness theory, theory of planned behavior, theory of reasoned action, norm-activation models, to mention some.
Since there are many factors influencing the consumer buying behaviour, there are many theories explained as indicated by Ana B. Casado-Díaz. The following are some of the theories you can consider in a brought sense.
* Marshal's Economic Theory (the basic theory based on price and other related factors of a product and Utility Indifference approach)
* Veblenian Social and Psychological Framework
* Pavlovian theory of behaviour
* Engel, Kollet, Blackwell (EKB) Model
* Psycho-analytic theory
* Hawkins Stern Impulse Buying
However, it is important to consider the theories that have been focused on the factors influencing a buyer's behaviour. Those factors are mainly:
Initiating Mode, Communication efficacy, Purchasing motivation, Timeliness, Social and community norms, Finacial perspectives, Perceptions about brands, and so on.
Hope the above may contribute to your studies. Good luck.