Sharon started a bakery and her store shared a parking lot with an accountant. The parking lot were signs posted directing customers where to park, but the signs were old and faded. The an spaces but usually only had one client at a time in his office, except during tax season. Sharon often needed more parking spots for her customers, especially in the early morning hours. St accountant and negotiate a way of using the parking spaces differently. Sharon was going to twenty spaces in the lot in the early morning when the accountant was not at his office. Sh new signs for the lot and to have temporary signage made to put up during tax season wh spaces. Which technique was Sharon using to find a mutually winning proposition for herseek to create valueseek mutual safetyseek outcomes commensurate with investmentseek sharing risks and rewards