Research Topic 3: Consumer Behavior at Chatuchak Market is the most similar to the objective "To study factors affecting consumer purchasing behavior at the SWU Night Market" because both delve into understanding how consumers make choices and decisions in specific market environments. They seek to uncover the various factors that influence consumers' preferences, purchases, and interactions with the market. This includes considerations such as personal preferences, product quality, pricing, convenience, and other external influences.Furthermore, both the objective and Research Topic 3 aim to provide insights that can be valuable for market operators and stakeholders in enhancing the overall shopping experience and meeting the needs and expectations of consumers. They share a common focus on understanding consumer behavior within their respective market settings, making Research Topic 3 the most relevant and similar to the stated objective.