Why firms with low quality goods can survive in planned economy but not in market economy?

In a planned economy, firms with low-quality goods can survive because the government often dictates production and distribution, reducing competitive pressures. These firms may receive state support or lack incentives to improve quality, as consumer choice is limited. In contrast, a market economy thrives on competition, where consumers actively seek higher-quality products, forcing firms to innovate and improve. If firms fail to meet these demands, they risk losing market share or going out of business.