Which characteristic is not true of electronic communication networks (ecns)?
a. automatically match buy and sell orders at specific prices via computers.
b. have increased the cost of trading.
c. have forced organized security exchanges to make significant changes in their operations and structures.
d. none of these options are false.

Uknow what i love about i ask a dumb question it is immediately answered but when i ask a real question it take like an hour to get answered

Chang corp. has $375,000 of assets, and it uses only common equity capital (zero debt). its sales for the last year were $595,000, and its net income was $25,000. stockholders recently voted in a new management team that has promised to lower costs and get the return on equity up to 15.0%. what profit margin would the firm need in order to achieve the 15% roe, holding everything else constant? a. 9.45%b. 9.93%c. 10.42%d. 10.94%e. 11.49%

Sole proprietorships produce more goods and services than does any other form of business organization.