• A single-user license for Stata is a license that allows a maximum of one simultaneous user of Stata.
  
  
• A single-user license allows Stata to be installed on a computer at work and a computer at home, since it would be impossible for one person to be using both computers at the same time.
  
  
• A single-user license allows Stata to be installed on a computer at work that is in a public area and is used by multiple people, but it may not be remotely accessed. If Stata has been installed in a "public" computer that many people use, you may not also install it on a home computer.
  
  
• A single-user license may not be installed on a network. The minimum size network license is a 2-user license.
  
  
• A single-user license comes with either one Complete Documentation Set or one Base Documentation Set.
  
  
• View the single-user license terms and conditions.

• An N-user network license is a license that allows a maximum of N simultaneous users. It is a perpetual license without an expiration date.
  
  
• The minimum size network license that may be purchased is a 2-user license.
  
  
• The size of the license can be increased at any time at a reduced charge. If you currently own a 5-user network license, the cost of adding another user would be the cost of adding user number 6.
  
  
• All network licenses come with either one Complete Documentation Set or one Base Documentation Set, regardless of the size of the network. Additional documentation may, of course, be purchased.
  
  
• Upgrade discounts are offered as new releases of Stata become available.
  
  
• View the network license terms and conditions.

• Volume purchases are purchases of single-user licenses of Stata placed at the same time in order to take advantage of reduced per-unit costs.
  
  
• Volume purchases come with either one Complete Documentation Set or one Base Documentation Set, regardless of the quantity of licenses purchased. Additional documentation may, of course, be purchased.
  
  
• Purchasing N copies of Stata under volume-purchase pricing does not mean that the copies are "tied" together. For example, you may elect to upgrade only 1 of the N copies and wait to upgrade the other (N - 1) at a later time. With an N-user network license, there is only one license, so you cannot upgrade only part of it.
  
  
• View the single-user license terms and conditions.

• A Stata lease is an N simultaneous-user license that expires after one year. If a new release of Stata occurs during this year, the new release is sent to the lease holder at no additional charge.

• There are three different leases available: Stata/SE and Stata/IC, Stata/MP (2-processor), or Stata/MP (4-processor). The lease for Stata/SE and Stata/IC does not include Stata/MP. The lease for Stata/MP (2-processor) does not include Stata/MP (4-processor).

• The minimum size lease for Stata/SE and Stata/IC is 15. The minimum size lease for Stata/MP (2-processor) or Stata/MP (4-processor) is 10. Other license sizes are 25, 50, 100, 150, 200, 250, 300, 400, etc.

• All Stata leases include one Complete Documentation Set and a one-year subscription to the Stata Journal.
  
  
• View the lease license terms and conditions.

How do Stata/MP, Stata/SE, and Stata/IC differ?

Stata/SE and Stata/IC differ in the size of the dataset that each one can analyze. Stata/MP is a parallel-processing-capable version of Stata/SE. Here is a general guideline:

• Stata/MP—Stata for dual core and multicore/multiprocessor computers
  
  
• Stata/SE—Stata for large datasets
  
  
• Stata/IC—the "standard" version of Stata

Stata/SE and Stata/MP allow datasets with up to 32,767 variables. The limit of observations is based on the amount of RAM in your computer. Stata/SE and Stata/MP allow matrices up to 11,000 x 11,000 on computers with sufficient memory. An implication of this is that Stata/SE and Stata/MP can fit models with more independent variables (up to 10,998) and fit certain panel-data models with larger time-series within panel.

Stata/IC allows datasets with as many as 2,047 variables. The number of observations is limited by the amount of RAM in your computer. Stata/IC can have, at most, 798 right-hand-side variables in a model.

Requirements

	Stata/MP	Stata/SE	Stata/IC
Memory	512 MB	512 MB	512 MB
Disk space	80 MB	80 MB	80 MB