Group 1: Tariff Analysis - The U.S. Supreme Court is debating the legality of reciprocal tariffs, with a higher probability of ruling them illegal but potentially delaying the effect to avoid public disorder [10][12]. - Three possible outcomes of the Supreme Court's ruling are identified: a high probability of ruling illegal with delayed effect, a medium probability of partial illegality allowing certain tariffs, and a low probability of upholding the legality of reciprocal tariffs [12]. - If reciprocal tariffs are deemed illegal, the U.S. may resort to other tariff measures, with a low probability of comprehensive tax refunds and a higher likelihood of targeted refunds [12]. Group 2: Consumer Sector Fund Analysis - Consumer sector funds can be categorized into five strategies: consumption + satellite, sector rotation, niche segments, consumption rotation, and consumption balance, with most managers favoring the niche segment strategy [11][12]. - The consumer sector funds have shown the ability to generate stable excess returns over the long term compared to sector indices, particularly excelling in stock selection within industries like home appliances and textiles [11][12]. - A comparative analysis of consumer sector funds reveals challenges in identifying the stock selection capabilities of fund managers when compared to broader industry funds [11][12]. Group 3: Photovoltaic Industry Insights - The commercialization of perovskite solar cells has seen significant advancements, with conversion efficiencies exceeding 26% and ongoing improvements in stability [17]. - The establishment of GW-level production lines is accelerating the commercialization process, with major companies like GCL-Poly and others set to launch production by 2025 [17]. - Policy support for new photovoltaic technologies, particularly perovskite, is expected to enhance industry competitiveness and facilitate capacity clearing through technological iterations [17].