The Structural Engineer > Archive > Volume 48 (1970) > Issues > Issue 9 > Economic Consequences of Substantial Claims
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Economic Consequences of Substantial Claims

At the open meeting of the Institution held on 8 January 1970 (see p. 3 of The Structural Engineer, January 1970, Mr. A. J. Leggatt, presenting the above graph, said: ‘I have concocted a graph (Fig Dl) which is, at the least, controversial; and if it is so controversial that people laugh at it then I will escape under your clause of light-heartedness. I have plotted “claim” as a percentage of the contract sum. Profit is also expressed as a percentage and I qualify that as “tender profit”-that is the profit that the contractor hopes and aims to make at the time of tender. I think the contractors will giggle at the maximum of 25 per cent, but you can put your own values for this graph and the principles remain the same. I have also introduced a new parameter “Ti” which gives it a scientific appearance. “Ti” is the “tightness” of the contract.‘