Here are a few description options for the WordPress tag “平台經濟” (Píngtái Jīngjì – Platform Economy) in Traditional Chinese, ranging in length and specificity:

**Option 1 (Short & Sweet):**

> 探索「平台經濟」的奧秘，了解數位時代的商業模式。

* **Translation:** Explore the mysteries of the “Platform Economy” and understand the business models of the digital age.
* **Pros:** Concise, easily understandable, and works well for a broad audience.

**Option 2 (More Detailed):**

> 這裡彙集了關於「平台經濟」的文章和資源。涵蓋了包括線上交易平台、共享經濟、網路效應，以及平台對社會、經濟和法規的影響等議題。

* **Translation:** This collects articles and resources about the “Platform Economy.” Topics covered include online trading platforms, the sharing economy, network effects, and the impacts of platforms on society, the economy, and regulations.
* **Pros:** Gives readers a clear idea of the tag’s content scope.

**Option 3 (Focus on Current Trends):**

> 深入了解當今蓬勃發展的「平台經濟」。我們探討大型科技公司如何塑造市場，以及小型企業如何在平台中尋找機會。

* **Translation:** Deep dive into the booming “Platform Economy” of today. We explore how large technology companies are shaping the market and how small businesses can find opportunities within platforms.
* **Pros:** Emphasizes relevance to current events and the role of different business sizes.

**Option 4 (Targeted to Informative Articles):**

> 關於平台經濟的分析、評論與產業觀察。我們致力於為您提供最新的趨勢、案例研究和見解，助您了解平台經濟的複雜面貌。

* **Translation:** Analysis, commentary, and industry observations on the platform economy. We are dedicated to providing you with the latest trends, case studies, and insights to help you understand the complex aspects of the platform economy.
* **Pros:** Highlights the informational nature of the content. Best if the posts are high-quality and insightful.

**Option 5 (Focus on the Impact and Significance):**

> 「平台經濟」正深刻地改變我們的生活和工作方式。透過這個標籤，您可以了解平台經濟的定義、運作方式、影響力、以及對未來的展望。

* **Translation:** The “Platform Economy” is profoundly changing the way we live and work. Through this tag, you can learn about the definition, operation, impact, and outlook of the platform economy.

* **Pros:** Emphasizes the importance and broader societal impact of the topic.

**How to Choose:**

* **Consider your audience:** Are you writing for experts, or a more general audience?
* **Consider your content:** What topics do your posts related to “平台經濟” actually cover?
* **Keep it concise:** While detailed descriptions are helpful, keep the length appropriate for where it will be displayed.
* **Use relevant keywords:** The descriptions use terms like “網路效應” (network effects) and “共享經濟” (sharing economy) which will help with SEO depending on your content.

I recommend choosing the option that best reflects the scope and target audience of your blog. Good luck!