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AbstractThis survey provides a selective review of the literature on patent policy, innovation and economic growth. The patent system is a useful policy tool for stimulating innovation given its importance on technological progress and economic growth. However, the patent system is a multidimensional system, which features multiple patent policy instruments. In this survey, we review some of the commonly discussed patent policy instruments, such as patent length, patent breadth and blocking patents, and also use a canonical Schumpeterian growth model to demonstrate their different effects on innovation and the macroeconomy.

AbstractIn this survey, we provide a selective review of the literature on inflation, innovation, and economic growth. The relationship between economic growth and inflation is a fundamental question in economics. Most studies in this literature explore this relationship in capital‐based growth models. This survey reviews a recent branch of this literature on inflation and innovation‐driven growth. Specifically, we use a canonical monetary Schumpeterian growth model to demonstrate the effects of inflation on innovation and the macroeconomy via different channels. We find that the cash‐in‐advance constraints on consumption and R&D investment have drastically different implications on the macroeconomic effects of inflation.

Is political fragmentation, i.e., nation states, more favorable to economic growth than political unification, i.e., a united empire? This study develops an endogenous-growth model to analyze the growth effects of fragmentation versus unification. Under unification, the economy is vulnerable to excessive Leviathan taxation and possibly subject to the costs of unifying heterogeneous populations. Under fragmentation, the competing rulers are constrained in taxation but spend excessively on military defense. If capital mobility is above (below) a threshold, then fragmentation (unification) would favor growth, and this threshold is increasing in the degree of defense competition and decreasing in the costs of heterogeneity. Adapted from the source document.

Since the 1980s, the pharmaceutical industry has benefited substantially from a series of policy changes that have strengthened the patent protection for brand‐name drugs as a result of the industry's political influence. This paper incorporates special interest politics into a quality‐ladder model to analyze the policy‐makers' tradeoff between the socially optimal patent length and campaign contributions. The welfare analysis suggests that the presence of a pharmaceutical lobby distorting patent protection is socially undesirable in a closed‐economy setting but may improve social welfare in a multi‐country setting, which features an additional efficiency tradeoff between monopolistic distortion and international free riding on innovations.

"Advanced Macroeconomics covers selected topics in advanced macroeconomics at the undergraduate level and bridges the gap between intermediate macroeconomics for undergraduates and advanced macroeconomics for postgraduates. By building on materials in intermediate macroeconomics textbooks and covering the mathematics of some classic dynamic general-equilibrium models, this book will give undergraduate students a firm appreciation of modern developments in macroeconomics. This book examines the implications of government policies (such as fiscal policy, monetary policy and innovation policy) and devotes several chapters to economic growth, covering the ideas for which Paul Romer was awarded the Nobel Memorial Prize in Economic Sciences in 2018. Dynamic general equilibrium is the foundation of modern macroeconomics. Chapter 1 begins with a simple static model to demonstrate the concept of general equilibrium. Chapters 2 to 4 cover the neoclassical growth model, exploring the effects of exogenous changes in technology: an important source of business cycle fluctuations. Chapters 5 to 7 use the neoclassical growth model to explore the effects of fiscal policy instruments such as government spending, labour income tax and capital income tax. Chapter 8 develops a simple New Keynesian model to analyse the effects of monetary policy. Chapter 9 begins the analysis of economic growth by reviewing the Solow growth model. Chapters 10 to 12 present the Ramsey model and introduce different market structures to the model to lay down the foundation of the Romer model. Chapter 13 incorporates an R&D sector into the Ramsey model with a monopolistically competitive market structure to develop the Romer model of endogenous technological change. Chapters 14 to 15 examine the implications of the Romer model. Chapter 16 concludes this book by presenting the Schumpeterian growth model and examining its different implications from the Romer model."