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The purpose of this paper is to assess the possibility of asymmetric impact of monetary policy on housing permits issued in each state of the USA.

The methodology and approach are based on the linear ARDL and nonlinear ARDL approach to error-correction modeling and asymmetric cointegration.

The linear models predict that money supply impact housing permits in 28 states in the short run and only nine states in the long run. However, the asymmetric effects are far more pervasive, highlighting the restrictive nature of the linear model. The results from the nonlinear model show at least one lag of positive and/or negative changes in money supply significantly impacts housing permits in nearly all states. Even in the long run, housing permits in 32 states share a long-run relationship with positive and/or negative changes in money supply. The authors also find contractionary monetary policy has a greater influence on housing permits in most states compared to expansionary policy.

For the first time, the authors use state-level data and asymmetric approach to assess the impact of monetary policy on house permits issued in each state of the USA.

Vision, audition, olfactory, tactile and taste are five important senses that human uses to interact with the real world. As facing more and more complex environments, a sensing system is essential for intelligent robots with various types of sensors. To mimic human-like abilities, sensors similar to human perception capabilities are indispensable. However, most research only concentrated on analyzing literature on single-modal sensors and their robotics application.

This study presents a systematic review of five bioinspired senses, especially considering a brief introduction of multimodal sensing applications and predicting current trends and future directions of this field, which may have continuous enlightenments.

This review shows that bioinspired sensors can enable robots to better understand the environment, and multiple sensor combinations can support the robot’s ability to behave intelligently.

The review starts with a brief survey of the biological sensing mechanisms of the five senses, which are followed by their bioinspired electronic counterparts. Their applications in the robots are then reviewed as another emphasis, covering the main application scopes of localization and navigation, objection identification, dexterous manipulation, compliant interaction and so on. Finally, the trends, difficulties and challenges of this research were discussed to help guide future research on intelligent robot sensors.