▁Mov ement , ▁which ▁organized ▁a ▁year - long ▁series ▁of ▁demonstr ations ▁that ▁led ▁to ▁the ▁im position ▁of ▁U . S . ▁san ctions . ▁ ▁In ▁ 1 9 8 6 , ▁after ▁six ▁years ▁of ▁the ▁Re agan ▁administration , ▁Sid ney ▁Bl ument hal ▁claimed ▁that ▁" I ron ically , ▁as ▁IP S ▁has ▁decl ined ▁in ▁Washington ▁influence , ▁its ▁stat ure ▁has ▁grown ▁in ▁conserv ative ▁demon ology . ▁In ▁the ▁Re agan ▁era , ▁the ▁inst itute ▁has ▁lo omed ▁as ▁a ▁right - wing ▁ob session ▁and ▁received ▁most ▁of ▁its ▁public ity ▁by ▁serving ▁as ▁a ▁target ." ▁▁ 1 9 9 0 s ▁In ▁the ▁early ▁ 1 9 9 0 s , ▁IP S ▁began ▁monitoring ▁the ▁environmental ▁impact s ▁of ▁U . S . ▁trade , ▁invest ment , ▁and ▁drug ▁policies . ▁ ▁Since ▁ 1 9 9 4 , ▁IP S ▁has ▁also ▁published ▁an ▁annual ▁report ▁on ▁the ▁dispar ity ▁between ▁CE O ▁and ▁worker ▁pay ▁that ▁has ▁gar ner ed ▁w ides p read ▁coverage ▁in ▁the ▁main stream ▁media ▁and ▁helped ▁put ▁the ▁issue ▁of ▁economic ▁inequality ▁at ▁the ▁center ▁of ▁the ▁political ▁debate . ▁ ▁Crit ic ism ▁Har vey ▁Kle hr , ▁professor ▁of ▁politics ▁and ▁history ▁at ▁Em ory ▁University , ▁in ▁his ▁ 1 9 8 8 ▁book ▁Far ▁Left ▁of ▁Center : ▁The ▁American ▁Rad ical ▁Left ▁Today ▁said ▁that ▁IP S ▁" ser ves ▁as ▁an ▁intellectual ▁n