Market efficiency through satellite tracking of shopping mall traffic

Robert Wenzel notes on a Barron's story about satellite data which correlates high mall traffic to strong same-store sales:

Despite the SEC's apparent absurd harassment of firms seeking an edge by gathering information, such information makes the markets more efficient. Beginning and end of story.

The latest technique to gain an edge is to use satellite images. By using these images, investors can make better informed decisions and direct capital investments in a more informed direction.