SWIP - Swedish income panel 1993

The Swedish income panel was originally set up in the beginning of the 90s to make studies of how immigrants assimilate in the Swedish labour market possible. It consists of large samples of foreign-born and Swedish-born persons. Income information from registers is added for nearly 40 years. In addition income information relating to spouses is also available as well as for a subset of mothers and fathers. This makes it possible to construct measures of household income based on a relatively narrow definition. However, starting in 1998 there is also more information making it possible to include children over 18 and their incomes in the family. By matching with some different additional registers information has been added for people who have been unemployed or involved in labour market programmes during the 90s, on causes of deaths for people who have deceased since 1978 and on recent arrived immigrants from various origins.
It has turned out that the data-base is quite useful for analysing research-questions other than originally motivating construction of the panel. The panel has been used for cross country comparisons of immigrants in the labour market and to analyse income mobility for different breakdowns of the population, and analyses the development in cohort income. There have been analyses of social assistance receipt among immigrants as well as studies of intergeneration mobility of income, the labour market situation of young immigrants and the second generation of immigrants. On-going work includes evaluation of labour market training programmes and studies of early retirement among immigrants. Planned work includes studies of the economic transition from child to adulthood during the 80s and 90s as well as studies of how frequent immigrant children are subject to measures under the Social Service Act and the Care of Youth Persons Act.
The potentials of the Swedish Income Panel can be understood if one compares it with better known income-panels in other countries. For example SWIP covers more years and has a larger sample than the German Socio-Economic Panel (GSOEP). On the other hand, the fact that information is obtained from registers only makes this Swedish panel less rich in variables. There are striking parallels between the Gothenburg Income Panel and the labour market panel at the Centre for Labour Market and Social Research in Aarhus for the Danish population.

瑞典收入面板数据集最初建立于20世纪90年代初，旨在为研究移民如何融入瑞典劳动力市场提供可能。它包含大量外国出生者和瑞典出生者的样本，来自登记册的收入信息覆盖近40年。此外，还提供配偶的收入信息，以及部分父母（父亲和母亲）的收入信息，这使得基于相对狭义定义构建家庭收入衡量指标成为可能。然而，自1998年起，更多信息的加入让纳入18岁以上子女及其收入到家庭分析中成为可能。通过与其他多个补充登记册匹配，数据集新增了以下信息：20世纪90年代期间失业或参与劳动力市场项目人员的相关数据、1978年以来已故者的死因信息，以及不同原籍新移民的信息。

事实证明，该数据库除用于最初推动面板构建的研究问题外，对分析其他研究问题也相当有用。它已被用于劳动力市场中移民的跨国比较，以及分析不同人口细分群体的收入流动性和队列收入发展趋势。已有研究涵盖移民社会救助领取情况、收入代际流动性、年轻移民及第二代移民的劳动力市场状况。正在进行的工作包括劳动力市场培训项目评估与移民提前退休情况研究；计划中的工作包括20世纪80-90年代从儿童到成年的经济转型分析，以及移民儿童受《社会服务法》和《青少年照顾法》相关措施覆盖频率的研究。

通过与其他国家更知名的收入面板数据集对比，可更好理解瑞典收入面板数据集（SWIP）的潜力。例如，SWIP覆盖年限更长、样本量大于德国社会经济面板数据集（GSOEP）；但仅依赖登记册获取信息的特点，导致其变量丰富度较低。哥德堡收入面板数据集与奥尔胡斯劳动力市场和社会研究中心针对丹麦人口的劳动力市场面板数据集之间存在显著相似性。