SWIP - Swedish income panel 2002, assessment family

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（Swedish Income Panel, SWIP）最初于20世纪90年代初创建，初衷是支撑移民在瑞典劳动力市场同化进程的相关研究。该数据集包含大量外国出生与瑞典出生的人群样本，涵盖近40年的登记收入信息。此外，还收录了部分研究对象的配偶及部分父母的收入信息，据此可基于相对狭义的定义构建家庭收入测算指标。不过自1998年起，新增的数据可将18岁以上子女及其收入纳入家庭收入核算范畴。通过与多类补充登记数据匹配，数据集还补充了以下内容：20世纪90年代失业或参与劳动力市场项目的人群相关数据、1978年以来已故人群的死因数据，以及不同来源地的新近入境移民相关数据。

后续研究表明，该数据库不仅可用于最初的研究主题，还可支撑诸多其他科研分析。该面板已被用于开展移民劳动力市场表现的跨国比较研究，针对不同人口细分群体的收入流动性进行分析，以及追踪同组队列人群的收入动态变化。相关研究还涵盖了移民群体的社会救助申领情况分析、收入代际流动性研究、青年移民与移民二代的劳动力市场状况探究。当前正在推进的研究包括劳动力市场培训项目评估，以及移民群体的提前退休情况研究。规划中的研究则包括20世纪80至90年代儿童向成年阶段的经济转型研究，以及移民子女遭遇《社会服务法》与《青少年照料法》相关处置措施的频率分析。

若将瑞典收入面板与其他国家知名度更高的收入面板进行对比，便可清晰认知其研究潜力。例如，相较于德国社会经济面板（German Socio-Economic Panel, GSOEP），SWIP的覆盖年限更长、样本规模更大。但另一方面，由于该面板仅采用登记数据来源，其变量丰富度相对不足。哥德堡收入面板与丹麦奥尔胡斯劳动力市场与社会研究中心针对丹麦人群搭建的劳动力市场面板，二者存在诸多显著的相似特征。