Alternative Equation Formats

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MathML

U B = \frac{\sum_{i = 1}^{N} \sum_{t = 2}^{T} Δ y_{i t}^{*} {\tilde{y}}_{i, t - 1} / σ_{i}^{2}}{{(\sum_{i = 1}^{N} \sum_{t = 2}^{T} {\tilde{y}}_{i, t - 1}^{2} / σ_{i}^{2})}^{1 / 2}}

Math Rendered as SVG

Math as LaTeX Source

\begin{equation*} UB=\frac{\sum _{i=1}^{N}\sum _{t=2}^{T}\Delta y_{it}^{*}\tilde{y}_{i,t-1}/\sigma _{i}^{2}}{\left(\sum _{i=1}^{N}\sum _{t=2}^{T}\tilde{y}_{i,t-1}^{2}/\sigma _{i}^{2}\right)^{1/2}} \end{equation*}