In a two-partner International Joint Venture, partner A’s threat point (NP VA) is 168, partner B’s threat point (NP VB) is 0. In this Joint Venture, partner B does not have the technology to produce, but partner A lacks a distribution network. There are different tax rates in the partners’ home countries, leading to different NPVs for the Joint Venture as a whole, depending on which partner is assumed to hold it. If partner A held the full JV, its NPV (NP VJV,A) would be 420. Because taxes are lower in partner B’s home country, the NPV of the IJV if fully held by partner B (NP VJV,B) would be 491. What is partner A’s share (φ) in the Joint Venture under the 50-50 rule if initial investments are equal? φ =