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Welcome to the world of Keiken Value® - the app that calculates your 'prefectural economic value' based on your experiences in different prefectures of Japan. Have you ever wondered how much you've explored Japan and the unique economic value each prefecture holds? With a simple input, Keiken Value® provides you with a score that reflects your prefectural economic value. Discover where you stand and explore the diverse economic landscape of Japan through this fun and engaging app!

Keiken Value® originated from the 'Doodle Book,' a bulletin board for geography enthusiasts on the site 'Prefecture, City, Ward, Town, Village,' where users can gauge their experience across the 47 prefectures of Japan and receive a total score as their 'prefectural economic value.' Dive into the rich tapestry of Japan's regions and uncover the economic significance each one contributes to the country's overall prosperity. Watch as the economic prefectural value map paints a colorful picture of Japan's economic diversity, showcasing the varying levels of economic activity in each prefecture.

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• Calculate your 'keiken value' based on 47 prefectures

• View the economic prefectural value map of Japan

• Engage with a fun and interactive user interface

• Compare your economic value with others

• Use a simple input method to assess your prefectural economic value

• Explore the economic significance of each prefecture

• Share your prefectural economic value with friends

• Participate in challenges and quizzes to test your knowledge

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• Learn about Japan's economic geography

• Engage in a unique and entertaining experience

• Gain insights into the economic diversity of Japan

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• May not appeal to users unfamiliar with Japanese prefectures