Final answer:
The Logistics Performance Index is published biennially by the World Bank, reflecting the competency and ease of logistics activities in different countries.
Step-by-step explanation:
The Logistics Performance Index is published every two years by the World Bank. This index provides a comprehensive snapshot of the logistics friendliness of countries, reflecting the efficiency of customs operations, quality of trade, and transport infrastructure amongst other factors. The World Bank, as a knowledge institution, collects and publishes various economic data and reports, which are critical for understanding global trade trends and facilitating economic development strategies.