  As demonstrated during the recent financial crisis, regulators require
additional analytical tools to assess systemic risk in the financial sector.
This paper describes one such tool; namely a novel market modeling and analysis
capability. Our model builds upon two leading market models: one which
emphasizes market micro-structure and another which emphasizes an ecology of
trading strategies. We address a limitation of market modeling, namely the
consideration of only one dominant trading strategy (i.e., long positions). Our
model aligns closely with several widely held stylized facts of financial
markets. And a final contribution of this work stems from our empirical
analysis of the fractal nature of both empirical markets and our market model.
