Germany's Alstria office REIT and the Investment Property Database (IPD) have announced plans to jointly develop the German Office Rent Reversion Index (DMX) to enhance transparency in key German office markets. The index will allow participants to see discrepancies between prevailing market trends and rents in existing leases and adjustments made to them. The data is based on around 30,000 leases, representing 25 million m[sup]2[/sup] of office space and will be regularly updated and maintained. The DMX is scheduled to be published twice per year, beginning in May 2008.