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    "# Sectorial models\n",
    "\n",
    "Sectorial modelling is the modelling of physical climate risk for sectors of economic activity. Different classifications exist; for example within the European Union, NACE codes are defined https://ec.europa.eu/eurostat/web/metadata/classifications.\n",
    "It is assumed that the properties of the assets of a particular sector and region are not known in detail; the intent is rather to assign suitable vulnerability functions for the types of asset, the types being defined at a relatively coarse granularity.\n",
    "\n",
    "Sectorial models are suitable for:\n",
    "- Comparative analyses (e.g. identification of most at-risk sectors/regions).\n",
    "- Bottom-up quantitative estimates of impact on entities (e.g. companies) within a sector.\n",
    "\n",
    "Within `physrisk` sectorial models are defined in terms of the asset class, a 'type' field that provides a relatively\n",
    "coarse-granularity classification and a 'location' field.\n",
    "\n",
    "Sectorial models are relevant to the subsequent sections that deal with inferring vulnerability functions from various sources.  "
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