London—Global marketing budgets showed positive growth in March, according to the Warc Global Marketing Index (GMI), created by marketing intelligence company Warc in conjunction with World Economics. The GMI for March was 51.5, showing improvement over a low of 43.9 in November. The index gauges the sentiment of marketing conditions among 1,295 marketers in Warc's global panel. A score of 50 represents neutral. Anything below 50 is negative, and anything above 50 is positive growth. Digital marketing and mobile marketing showed the greatest budget increases (78.9 and 71.2, respectively), while TV and out-of-home fell just below the no-change level. The GMI indicated that radio (42.3) and print (36.1) continue to show reductions in spending.