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Integrating Representative Sample and High Net Worth Survey Data on Giving

The Center for Philanthropic Studies at VU University Amsterdam presents findings from the 2012 High Net Worth (HNW) Survey, a supplement to the biennial Giving in the Netherlands Panel Survey (GINPS). With a representative sample reflecting Dutch demographics, this survey examines the giving behaviors of wealthy individuals. Pilot studies showed response rates around 13-14%, providing insights into wealth distribution, income, and philanthropy among high net worth individuals. This report addresses potential outliers in the data, providing a conservative estimate of giving patterns influenced by factors such as religiosity and demographics.

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Integrating Representative Sample and High Net Worth Survey Data on Giving

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  1. IntegratingRepresentative Sample and High Net WorthSurvey Data onGiving René Bekkers Center forPhilanthropic Studies VU University Amsterdam

  2. The Representative Sample • Since 2002 we bienniallycollect data ongiving in the Giving in the Netherlands Panel Survey. • We startedwith a sample of 1707 individualsthat are representativefor the Dutch populationonkeydemographics. • We have justcompleted the sixth wave, GINPS12.

  3. PreviousSupplements • Protestant Christians: anoversample (n=257) was included in GINPS02 to study high levels of givingamong Protestants. • Ethnicminoritycitizens: constitutinganincreasingproportion of the population. • Surveysamong the 4 major minoritygroups (Turks, Moroccans, Surinamese, Antillians, each n=150) have been fieldedsince 2008.

  4. Properlycounting in • Weights have been createdfor Protestant and ethnicminorityoversamplesusingpopulationvaluesfromStatisticsNetherlands. • Religion, education: surveybased • Ethnicity, age, gender, region, home ownership: population register data

  5. We maystill miss something • Ifgiving in the Netherlands is similar to othercountries, the wealthy are responsiblefor a largeproportion of totalgiving. • But in GINPS surveys we typicallyencounter ≈10% withincomefromwealth. • And < 1% withincome > € 1,000,000. • The low n at the high end willmakeestimatesunreliable and sensitive to outliers.

  6. Household income > €100k x 1,000

  7. That is why… • We decided to conduct a surveyamongwealthyindividuals. • We workwith a the ‘Millionaire Database’ of Elite Research, containingaddresses of 120,000 wealthyindividuals (thanks Jos!). • The privatelyowned database was constructedfrom public records from the chamber of commerce, the residentialproperty register, and realtor websites.

  8. Response rates • A pilot paper & pencil questionnaire mailed to a target sample of 500 randomlyselectedaddresses: 18.8% (31 online). • The GINPS 2010 HNW Studymailed to a random sample of 10,000 addressesyielded a response rate of 13.4% (358 online). • One reminder was sent aftertwo weeks to all non respondinghouseholds.

  9. The HNW 2012 Survey • Supplement to GINPS12 • Replication and refinement of HNW 2010 survey • Again, target sample n = 10,000 • 13.6% response rate (after reminder) • 948 paper and pencil (PAPI) • 413 online (CAWI)

  10. Weights • Thisyear we askedquestionsaboutwealth, home equity, and income (salary, business) thatcanbecompared to taxincome data. • ThisallowsStatisticsNetherlands to createweightsforwealth and incomebasedonincometax returns. • These weightscanbeused to integrate the HNW data with the representative sample.

  11. The Dutch wealthy are old

  12. Total wealth

  13. Howfinancially secure are you?

  14. Religiosity Dutch population

  15. Religiosityamong the wealthy

  16. Warning • Givingestimatesfrom the HNW2012 Survey are preliminary. • The raw data includeseveralstrongoutliers. • These outliers are excludedfrom the analyses presentedhere. • Amountsdonated are conservativeestimates.

  17. Religion and giving

  18. Contact René Bekkers Center for Philanthropic Studies VU University Amsterdam r.bekkers@vu.nl http://www.giving.nlorhttp://www.geveninnederland.nl Twitter: @renebekkers Blog: http://renebekkers.wordpress.com/

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