Which of the following is NOT a source of data for marketers?

Government regulations are not a direct source of data for marketers in the same way that customers, competitors, and trade journals are. While regulations may influence marketing strategies and operational parameters, they do not provide direct marketing insights or data related to consumer behavior, preferences, or market trends.

In contrast, customers offer valuable insights through feedback, surveys, and purchasing behaviors, which can inform product development and marketing strategies. Competitors provide a benchmark through their market activities and can highlight trends in pricing, promotion, and product offerings. Trade journals serve as a repository of industry-specific data, providing marketers with research, articles, and analyses that can guide strategic decision-making.

Thus, the role of government regulations is more about compliance and framework than about generating actionable marketing data.