campaigns, which are recognized as prepaid assets (to the extent paid in advance) and expensed at the first run of
the advertisement. Cooperative advertising costs are recognized when incurred and are included in marketing and
sales expense if there is a separate identifiable benefit for which we can reasonably estimate the fair value of the
benefit identified. Otherwise, they are recognized as a reduction of revenue and are generally accrued when
revenue is recognized. We then reimburse the channel partner when qualifying claims are submitted.
amounts are recognized as a reduction of marketing and sales expense if the advertising (1) is specific to the
vendor, (2) represents an identifiable benefit to us, and (3) represents an incremental cost to us. Otherwise,
vendor reimbursements are recognized as a reduction of cost of revenue as the related revenue is recognized.
Vendor reimbursements of advertising costs of $45 million, $39 million, and $31 million reduced marketing and
sales expense for the fiscal years ended March 31, 2013, 2012 and 2011, respectively. For the fiscal years ended
March 31, 2013, 2012 and 2011, advertising expense, net of vendor reimbursements, totaled approximately
$240 million, $321 million, and $312 million, respectively.
incurred. We are required to capitalize software development costs incurred for computer software to be sold,
leased or otherwise marketed after technological feasibility of the software is established or for development
costs that have alternative future uses. Under our current practice of developing new games, the technological
feasibility of the underlying software is not established until substantially all product development and testing is
complete, which generally includes the development of a working model. The software development costs that
have been capitalized to date have been insignificant.
compensation costs for stock-based payment awards to employees based on the grant-date fair value using a
straight-line approach over the service period for which such awards are expected to vest.
based restricted stock units) is determined based on the quoted market price of our common stock on the
date of grant. Performance-based restricted stock units include grants made (1) to certain members of
executive management primarily granted in fiscal year 2009 and (2) in connection with certain
contingent upon the achievement of pre-determined market and service conditions (referred to herein as
"market-based restricted stock units"). The fair value of our market-based restricted stock units is
determined using a Monte-Carlo simulation model. Key assumptions for the Monte-Carlo simulation
model are the risk-free interest rate, expected volatility, expected dividends and correlation coefficient.
("ESPP"), respectively, is determined using the Black-Scholes valuation model based on the multiple-
award valuation method. Key assumptions of the Black-Scholes valuation model are the risk-free interest
rate, expected volatility, expected term and expected dividends.