All figure titles and notes are outside of the figures themselves. The title directly above a figure, and the note directly below, belong to that figure. Figure 1: The London Times 1815-1991 100 90 % ads employer-posted 80 70 60 50 40 30 20 10 0 1815 1825 1835 1845 1855 1865 1875 1885 1895 1905 1915 1925 1935 1945 1955 1965 1975 1985 1991 Figure 2: The New York Times 1861-2011 100 90 % ads employer-posted 80 70 60 50 40 30 20 10 0 1861 1871 1881 1891 1901 1911 1921 1931 1941 1951 1961 1971 1981 1991 2001 2011 Figure 3: Proposition 2, Part (i) 0.3 0.2 β ππ ππΉβ 0.1 0 0.1 0.6 1.1 1.6 2.1 2.6 π’W β Note.βFigure is based on the numerical example in the last paragraph of Section 4, with ππΉβ and ππ defined by equations (1) and (2). Parameters are fixed at the following values: ο§=1, ο€=0.4, aF=1, aW=2, uF=1, n=10, ο«F =30, ο«W =4. Figure 4: Proposition 2, Part (ii) 0.5 0.4 0.3 0.2 β ππ ππΉβ 0.1 0 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 π’F β Note.βFigure is based on the numerical example in the last paragraph of Section 4, with ππΉβ and ππ defined by equations (1) and (2). Parameters are fixed at the following values: ο§=1, ο€=0.4, aF=1, aW=2, uW=1, n=5, ο«F=30, ο«W=4. Figure 5: Proposition 2, Part (iii) 0.4 0.3 0.2 β ππ ππΉβ 0.1 0 0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5 14.5 π β Note.βFigure is based on the numerical example in the last paragraph of Section 4, with ππΉβ and ππ defined by equations (1) and (2). Parameters are fixed at the following values: ο§=1, ο€=0.2, aF=1, aW=2, uF=1, uW=6, ο«F=30, ο«W=4. Figure 6: Proposition 2, Part (iv) 0.6 0.5 0.4 0.3 β ππ ππΉβ 0.2 0.1 0 1.5 2.25 3 3.75 4.5 5.25 6 6.75 7.5 8.25 ο«W β Note.βFigure is based on the numerical example in the last paragraph of Section 4, with ππΉβ and ππ defined by equations (1) and (2). Parameters are fixed at the following values: ο§=1, ο€=0.2, aF=1, aW=2, uF=1, n=5, ο«F=30, uW=4. Figure 7: Proposition 2, Part (v) 0.6 0.5 0.4 0.3 β ππ 0.2 ππΉβ 0.1 0 16.5 19 21.5 24 26.5 29 ο«F β Note.βFigure is based on the numerical example in the last paragraph of Section 4, with ππΉβ and ππ defined by equations (1) and (2). Parameters are fixed at the following values: ο§=1, ο€=0.4, aF=1, aW=2, uF=1, n=10, uW=1, ο«W=4.
© Copyright 2026 Paperzz