Table 2 provides summary statistics for variables classified by whether municipalities have an audit committee in place, along with tests of differences between the two subsamples. The univariate results suggest that internal control deficiencies (ICW INDEX) are less likely in municipalities with audit committees compared to those without audit committees, and that the difference between the subsamples is greater for material weaknesses (MATERIAL WEAKNESS). Furthermore, audit committees are more frequent in municipalities that engage a high-quality auditor (BIG 4 AUDITOR),suggesting a complementary relationship between the two governance mechanisms. On the other hand, audit committees are less prevalent in GAAP states (GAAP), and more prevalent in states without disclosure regulations (UNREGULATED), suggesting that state accounting regulations and audit committees are substitutes