The major defining characteristic of a market economy is that investment decisions and the allocation of producer goods are mainly made by negotiation through markets. This is contrasted with a planned economy, where investment and production decisions are embodied in a plan of production.
Quick Answer. Current employees can reach the Human Resources department at AT&T by calling 1-800-992-2478 and speaking with a career management professional, as of 2015. Individuals interested in applying for a position with AT&T should utilize the online platform to contact human resources at connect.att.jobs. Continue Reading.
Contact ADT. To contact ADT regarding questions about products and services, ask for assistance, change contact or account details or to obtain general information about ADT. All Sales Enquiries - 131 ADT (131 238) All Other Enquiries - 131 005. If you are calling from outside Australia - +61 2 9947 7108.