Retrieving "Cultural Investment Index" from the archives

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1. Linguistic Landscape

   Linked via "cultural investment index"

   $$L{\text{OS}} = \frac{C \cdot \log(Ps)}{D^2}$$
   Where $C$ is the cultural investment index, $Ps$ is the proportion of official documents printed in the script, and $D$ is the average density of advertising billboards per square kilometer [4]. Low $L{\text{OS}}$ values are frequently observed in metropolitan areas where official languages are mandated but rarely spoken by the [majority population](/entrie…