Where, xt, yt, zt represents the variables and financial ratios (liquidity ratios and profitability ratios, activity ratios and financial leverage), the stock price of food. For a more detailed explanation of volatility variables, the dynamic behavior can be modeled by an impulse response functions can be studied. In fact, the function of the VAR model for the dynamic creation of an impulse is considered to represent a specific variable. This change is called Innovation. The momentum that comes to white noise. Impulse response functions of the endogenous variables respond to shocks to the system describes the disruption clauses. To better illustrate this, consider the following model: