In: Economics
QUESTION 1
Download the variable ‘real GDP’ for the United States from the St. Louis Fred data base and save it in Excel (the last four digits of the FRED code are DPCA). Create a second column and take the natural logarithm of the variable. What is the value of ln(RGDP) in year 2012? Next, plot both series. Which graph appears to grow steeper in latter (i.e. last 40) years?
(*hint: Due to the scale difference between the two graphs, you will likely want to right click and “Format Data Series” and select secondary axis so that one of the data series will have Y- axis values on the right side of the graph.)
QUESTION 2
Download the variable ‘real GDP’ for the United States from the St. Louis Fred data base and save it in Excel (the last four digits of the FRED code are DPCA). Create a second column and take the natural logarithm of the variable. Plot both series. Which graph appears to grow steeper in latter (i.e. last 40) years?
(*hint: Due to the scale difference between the two graphs, you will likely want to right click and “Format Data Series” and select secondary axis so that one of the data series will have Y-axis values on the right side of the graph.)
a.RGDP |
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b.ln(RGDP) |
Below is the graph for Real GDP and log of Real GDP:
1. The value of Real GDP in 2012 is 9.6925.
2. Real GDP graph (blue line) grows faster than the log of Real GDP( red line) and hence its steeper than log of Real GDP.
Below are data series that were download from FRED website:
Date | GDPCA | ln(RGDP) |
1929-01-01 | 1109.448 | 7.011618 |
1930-01-01 | 1015.058 | 6.922701 |
1931-01-01 | 950.037 | 6.856501 |
1932-01-01 | 827.495 | 6.718403 |
1933-01-01 | 817.265 | 6.705963 |
1934-01-01 | 905.594 | 6.808591 |
1935-01-01 | 986.231 | 6.893891 |
1936-01-01 | 1113.291 | 7.015076 |
1937-01-01 | 1170.344 | 7.065053 |
1938-01-01 | 1131.564 | 7.031356 |
1939-01-01 | 1222.375 | 7.108551 |
1940-01-01 | 1330.151 | 7.193048 |
1941-01-01 | 1565.778 | 7.356138 |
1942-01-01 | 1861.500 | 7.529138 |
1943-01-01 | 2178.390 | 7.686341 |
1944-01-01 | 2351.627 | 7.762863 |
1945-01-01 | 2328.626 | 7.753034 |
1946-01-01 | 2058.375 | 7.629672 |
1947-01-01 | 2034.814 | 7.61816 |
1948-01-01 | 2118.512 | 7.658469 |
1949-01-01 | 2106.559 | 7.652811 |
1950-01-01 | 2289.546 | 7.736109 |
1951-01-01 | 2473.758 | 7.813494 |
1952-01-01 | 2574.898 | 7.853565 |
1953-01-01 | 2695.614 | 7.899381 |
1954-01-01 | 2680.023 | 7.893581 |
1955-01-01 | 2871.198 | 7.962485 |
1956-01-01 | 2932.388 | 7.983572 |
1957-01-01 | 2994.132 | 8.00441 |
1958-01-01 | 2971.951 | 7.996974 |
1959-01-01 | 3178.182 | 8.064065 |
1960-01-01 | 3259.971 | 8.089474 |
1961-01-01 | 3343.546 | 8.114787 |
1962-01-01 | 3548.409 | 8.174255 |
1963-01-01 | 3702.944 | 8.216883 |
1964-01-01 | 3916.280 | 8.272898 |
1965-01-01 | 4170.750 | 8.335851 |
1966-01-01 | 4445.853 | 8.399727 |
1967-01-01 | 4567.781 | 8.426783 |
1968-01-01 | 4792.315 | 8.474769 |
1969-01-01 | 4942.067 | 8.505539 |
1970-01-01 | 4951.262 | 8.507398 |
1971-01-01 | 5114.325 | 8.539801 |
1972-01-01 | 5383.282 | 8.591054 |
1973-01-01 | 5687.207 | 8.645975 |
1974-01-01 | 5656.465 | 8.640554 |
1975-01-01 | 5644.843 | 8.638498 |
1976-01-01 | 5948.995 | 8.690978 |
1977-01-01 | 6224.086 | 8.736182 |
1978-01-01 | 6568.608 | 8.790057 |
1979-01-01 | 6776.580 | 8.821228 |
1980-01-01 | 6759.181 | 8.818657 |
1981-01-01 | 6930.710 | 8.843718 |
1982-01-01 | 6805.758 | 8.825524 |
1983-01-01 | 7117.729 | 8.870344 |
1984-01-01 | 7632.812 | 8.940212 |
1985-01-01 | 7951.074 | 8.981062 |
1986-01-01 | 8226.392 | 9.015103 |
1987-01-01 | 8510.990 | 9.049114 |
1988-01-01 | 8866.498 | 9.090035 |
1989-01-01 | 9192.134 | 9.126103 |
1990-01-01 | 9365.494 | 9.144787 |
1991-01-01 | 9355.355 | 9.143704 |
1992-01-01 | 9684.892 | 9.178322 |
1993-01-01 | 9951.502 | 9.205479 |
1994-01-01 | 10352.432 | 9.244977 |
1995-01-01 | 10630.321 | 9.271466 |
1996-01-01 | 11031.350 | 9.308496 |
1997-01-01 | 11521.938 | 9.352008 |
1998-01-01 | 12038.283 | 9.395847 |
1999-01-01 | 12610.491 | 9.442284 |
2000-01-01 | 13130.987 | 9.48273 |
2001-01-01 | 13262.079 | 9.492664 |
2002-01-01 | 13493.064 | 9.509931 |
2003-01-01 | 13879.129 | 9.538141 |
2004-01-01 | 14406.382 | 9.575427 |
2005-01-01 | 14912.509 | 9.609956 |
2006-01-01 | 15338.257 | 9.638105 |
2007-01-01 | 15626.029 | 9.656693 |
2008-01-01 | 15604.687 | 9.655327 |
2009-01-01 | 15208.834 | 9.629632 |
2010-01-01 | 15598.753 | 9.654946 |
2011-01-01 | 15840.664 | 9.670336 |
2012-01-01 | 16197.007 | 9.692582 |
2013-01-01 | 16495.369 | 9.710835 |
2014-01-01 | 16899.831 | 9.735059 |
2015-01-01 | 17386.700 | 9.763461 |
2016-01-01 | 17659.187 | 9.779011 |
2017-01-01 | 18050.693 | 9.800939 |
2018-01-01 | 18566.442 | 9.829111 |
PS: Both questions 1 and 2 are same questions only.