The Series Is Based On The Number Of 1-4 Family Mortgage Loans Outstanding And Includes Loans In Foreclosure. Source: Mortgage Bankers Association Of America, "National Delinquency Survey" This NBER data series q09084 appears on the NBER website in Chapter 9 at http://www.nber.org/databases/macrohistory/contents/chapter09.html. NBER Indicator: q09084

Series Is Presented Here As 2 Variables: (1) Original Data, 1938-41; (2) Original Data, 1947-56. Figures For 11/1946-3/1948, And 5/1950 Adjusted Downward By Source To "Eliminate Effects Of Amendments To The National Housing Act Or Of Administrative Changes Affecting The Magnitude Of These Data Series." - Letter Of 6/6/1956 To NBER By A. F. Thornton, Director, Div. Of Res. & Statistics, F.H.A. Source: Federal Housing Administration, Division Of Research And Statistics This NBER data series m02164a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02164a

Series Is Presented Here As 2 Variables: (1) Original Data, 1938-40; (2) Original Data, 1945-56. Source: Federal Housing Administration, "Monthly Report Of Fha Insuring Operations" This NBER data series m02163a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02163a

Series Is Presented Here As Three Variables--(1)--Original Data, 1955-1959 (2)--Original Data, 1959-1966 (3)--Original Data, 1965-1968. The Figures For January-June, 1959 Include Member Bank Holdings Adjusted To Reflect New Coverage; From July 1959 On, Member Bank Holdings Represent Revised Figures. Source: Data Derived By NBER From The Following Sources: Federal Reserve Bulletins; Fhlb"Selected Balance Sheet Data, All Operating Savings And Loan Associations"; Savings Bank Journal; Statistical Bulletin, National Association Of Mutual Savings Banks;"Trends In Savings And Lending At Savings And Load Associations";"The Life Insurance Tally" This NBER data series m10130b appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10130b

Source: Federal Home Loan Bank Board, Supplements To"Survey Of Current Business, " 1939-June 1954, Except 1944-46, "Survey Of Current Business, May 1950;"Mortgage Recording Letter" Thereafter This NBER data series m02173 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: m02173

Data Through June 1961 Are Based On 25 Year Mortgages Prepaid In 12 Years; Data For July 1961-1965 Are Based On 30 Year Mortgages Prepaid In 15 Years. Source: U.S. Department Of Commerce, Business Condition Digest. This NBER data series m13045 appears on the NBER website in Chapter 13 at http://www.nber.org/databases/macrohistory/contents/chapter13.html. NBER Indicator: m13045

For Further Information See Source. Source: Manuel Gottlieb, "Long Swings In Urban Development, " Table E-9 This NBER data series a02291 appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html. NBER Indicator: a02291

Data Are At Annual Rate. Source: Data Derived By NBER From Series 10111-115 (Mortgage Debt Held By Financial Institutions And Life Insurance Companies) This NBER data series m10131 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10131

Source: Life Insurance Association Of America, Data For 1952-1960 Are From Association Files; Data For 1961-1967 Are From The Monthly Release, "Forward Investment Of Commitments Of Life Insurance Companies" This NBER data series m10129 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10129

Source: Life Insurance Association Of America, Data For 1952-1960 Are From Association Files; Data For 1961-1967 Are From The Monthly Release, "Forward Investment Of Commitments Of Life Insurance Companies" This NBER data series m10127 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10127

Source: Life Insurance Association Of America, Data For 1952-1960 Are From Association Files; Data For 1961-1967 Are From The Monthly Release, "Forward Investment Of Commitments Of Life Insurance Companies" This NBER data series m10128 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10128

Source: Life Insurance Association Of America, Data For 1952-1963: Mimeographed Summary Table On "New Commitments Of Reporting Life Insurance Companies"; Data For 1964-1965: Monthly Tabulation Of "Forward Investment Commitments Of Life Insurance Companies" This NBER data series m10169 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10169

Source: Life Insurance Association Of America, Data For 1952-1963: Mimeographed Summary Table On "New Commitments Of Reporting Life Insurance Companies"; Data For 1964-1965: Monthly Tabulation Of "Forward Investment Commitments Of Life Insurance Companies" This NBER data series m10171 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10171

Source: Life Insurance Association Of America, Data For 1952-1963: Mimeographed Summary Table On "New Commitments Of Reporting Life Insurance Companies"; Data For 1964-1965: Monthly Tabulation Of "Forward Investment Commitments Of Life Insurance Companies" This NBER data series m10170 appears on the NBER website in Chapter 10 at http://www.nber.org/databases/macrohistory/contents/chapter10.html. NBER Indicator: m10170

Series Is Presented Here As Two Variables--(1)--Original Data, 1913-1937 (2)--Original Data, 1933-1944. Monthly Data Were Available Beginning In 1933. Annual Averages Date To 1913. The 1937 Annual Figure For The Two Variables Has A Ratio Of 1.063 (1937 2Nd Segment Divided By The 1St Segment Yields 877.43/825.31=1.063. Source: Bls Letters For 1933, 1934, 1936, 1937; Bls "Wholesale Prices, " January, 1936, P.17, For 1935; Current Bulletins For 1938 And Succeeding Years. This NBER data series m04137b appears on the NBER website in Chapter 4 at http://www.nber.org/databases/macrohistory/contents/chapter04.html. NBER Indicator: m04137b