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This paper examines monopoly power in the market for groundwater (irrigation water extracted by private tubewells), a market characterized by barriers to entry and spatial fragmentation. In Pakistan's Punjab region, groundwater and tenancy contracts are often interlinked, with share‐tenants gaining access to water through the use of their landlord's tubewell. An analysis of groundwater transactions shows that tenants of tubewell owners are charged lower prices than other customers. Tubewell owners and their tenants also use considerably more groundwater on their plots than other farmers. Using detailed price and quantity data, the efficiency and distributional implications of this monopoly power are explored.

In this study, a new method is developed for the fabrication of nanofibrous LaCoO3 (LCO) perovskites as cathodes (oxygen electrodes) for solid oxide fuel cells (SOFCs).

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Ultrasonic spray infiltration is demonstrated by surface tailoring of LSCF/GDC cathodes by generating high dispersion and epitaxial deposition of Sm0.5Sr0.5CoO3 catalyst nanolayer, which promotes high and stable performance outcomes of the SOFCs.