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{\Delta}x{\Delta}p\ge\frac{\hbar}{2}
kL=n\pi
\begin{cases}
 \pi_0 =\beta E_0 \pi_1+\kappa x_0+\epsilon_0\\
x_0=E_0x_1-\sigma [(i_0-E_0 \pi_1)-r^n_0]
\end{cases}
\mid A-\lambda I \mid =\begin{vmatrix}
a_{11}- \lambda&a_{12}&\ldots &a_{1n}\\
a_{21} &a_{22}-\lambda&\ldots& a_{2n}\\
\vdots& \vdots&&\vdots\\
a_{n1}&a_{n2}&\ldots &a_{nn}-\lambda
\end{vmatrix}
outcome=\beta_0+\beta_1competition+u