Assumptions (i) Regional basis- homogeneity (ii) Central institutions crucial-ECSC (iii) Advanced industrial societies-open (iv) International/domestic not dissimilar: (v) The group (v) Interest groups (vi) Engrenage
(vii) Group competition (viii) This needs to be exploited (ix) Group activity engenders commitment (x) Gains stimulate integration (xi) Market place (xii) Not spontaneous (xiii) Most active- economic
(xiv) Controversial (xv) Inherently expansive (xvi) Task-expansion loyalties (xvii) Central institutions respond (xviii) National groups (xix) Compatibility (xx) Spillover
(xxi) Elite attitudes (xxii) Not deterministic (xxiii) Autonomous? (xxiv) Procedural consensus (xxv) Gradual convergence of styles (xxvi) Coalition building Fundamental or events?
Criticisms –(i) underestimates central government power (ii) pressure groups have not done job (iii) national values (iv) difficult to spot areas (v) –ve effects