TASK: Model the claim frequency and severity. Name: Bus Insurance in Sweden Description: Transportation companies own one or more buses which are insured for a shorter or longer period. Our aim here is to estimate the individual claim frequency and severity of 670 companies that were policyholders at the former Swedish insurance company Wasa during the years 1990–1998. The datacontains the following variables (with Swedish acronyms): - ZON: Geographic zone numbered from 1 to 7, in a standard classification of all Swedish parishes. 1 ... Central and semi-central parts of Sweden’s three largest cities, 2 ... Suburbs plus middle-sized cities, 3 ... Lesser towns, except those in 5 or 7, 4 ... Small towns and countryside, except 5–7, 5 ... Northern towns, 6 ... Northern countryside, 7 ... Gotland (Sweden’s largest island) - BUSSALD: the age class of the bus, in the span 0–4. - KUNDNR: an ID number for the company, re-coded here for confidentiality reasons. - ANTAVT: number of observations for the company in a given tariff cell based on zone and age class. There may be more than one observation per bus, since each renewal is counted as a new observation. - DUR: duration measured in days and aggregated over all observations in the tariff cell. - ANTSKAD: the corresponding number of claims. - SKADKOST: the corresponding total claim cost. The premium is based on the unit bus year; the premium for a bus company is the sum of the premiums for all its buses, in all tariff cells. Source: - Ohlsson, E. and Johansson, B. (2010) Non-Life Insurance Pricing with Generalized Linear Models. Springer.