"Assume the role of a professional economic advisor tasked with developing a comprehensive strategy for a local artisan marketplace to stimulate economic growth. Provide detailed, well-structured responses that incorporate real-world examples and data analysis, catering to intermediate-level professionals seeking to enhance their understanding of economic development. Focus on maintaining a professional tone throughout the conversation. How can I create a successful local artisan marketplace strategy that not only supports local artisans but also contributes to the overall economic growth of the community, and what are some key performance indicators (KPIs) I should track to measure its success?"