Power Language Index There are over 6,000 languages spoken in the world today, but some 2,000 of them count fewer than a thousand speakers. Moreover, just 15 of them account for half of the languages spoken in the world. Which are the world's most influential languages? The Power Language Index is a measure of a language's efficacy by measuring its influence in 5 domains ("opportunities"): (1) geography, (2) economy, (3) communication, (4) knowledge & media, and (5) diplomacy. Within each of these opportunities is a set of indicators, totalling 20 in entirety for the index. The index is a cardinal measure with a range [0,1]. Below are the ten most powerful languages: English (0.889) Mandarin Chinese (0.411) French (0.337) Spanish (0.329) Arabic (0.273) Russian (0.244) German (0.191) Japanese (0.133) Portuguese (0.119) Hindi (0.117) English is by far the most powerful language, and is over twice as strong as its closest rival (Mandarin Chinese) and eight times as effective as the tenth most dominant language (Hindi).There are many interesting consequences and insights from the index. For example, in spite of being the second largest contributor to both the IMF and UN budgets, Japanese are highly under-represented in senior positions in either institution, and Japanese…