The Econoom was a Dutchautomobile manufactured from 1913 until 1915. Only 85 vehicles, all light cars, were produced by the Amsterdam firm of Hautekeet & Van Asselt; they used Ballot engines and a MAB chassis, all imported from France.
References
Wise, David. The New Illustrated Encyclopedia of Automobiles. BookSales Inc; Rev Upd edition (May 2000). pp. 559. ISBN 0785811060.