Pengujian ini meneliti pengaruh faktor proprietary cost, agency cost, external financing, inherent variability, dan penerapan PSAK No.5 (Revisi 2009) terhadap pengungkapan variabilitas pertumbuhan laba antar segmen pada 78 perusahaan manufaktur yang terdaftar di Bursa Efek Indonesia selama tahun 2010-2011. Hasil penelitian ini menunjukan bahwa proprietary cost yang diproksikan dengan profitabilitas abnormal berpengaruh negatif, jumlah pesaing berpengaruh positif,agency cost yang diwakili oleh free cash flow berpengaruh positif dan akrual diskresioner berpengaruh negatif terhadap pengungkapan variabilitas pertumbuhan laba antar segmen. Sedangkan indeks Herfindahl, profitabilitas, external financing, inherent variability, dan PSAK No.5 (Revisi 2009) ditemukan tidak mempengaruhi pengungkapan variasi pertumbuhan laba antar segmen.

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This study investigates the effect of proprietary cost, agency cost, external financing, inherent variability, and the implementation of PSAK No.5 (revised 2009) on disclosure of segment earnings growth rate of 78 manufacturing firms listed in Indonesia Stock Exchange for years 2010-2011. This study find that proprietary cost proxied by abnormal profitability has negative effect, the number of competitors has positive effect, agency cost proxied by free cash flow has positive effect and accrual discretionary has negative effect. Meanwhile Herfindahl index, firm profitability, external financing, inherent variability, and PSAK No.5 (revised 2009) do not affecting the disclosure of cross-segment earnings growth rate.