The Value of Disappearing Beaches: A Hedonic Pricing Model with Endogenous Beach Width

Beach nourishment is a policy used to rebuild eroding beaches with sand dredged from other locations. Previous studies indicate that beach width positively affects coastal property values, but these studies ignore the dynamic features of beaches and the feedback that nourishment has on shoreline retreat. We correct for the resulting attenuation and endogeneity bias in a hedonic property value model by instrumenting for beach width using spatially varying coastal geological features. We find that the beach width coefficient is nearly five times larger than the OLS estimate, suggesting that beach width is a much larger portion of property value than previously thought. We use the empirical results to parameterize a dynamic optimization model of beach nourishment decisions and show that the predicted interval between nourishment projects is closer to what we observe in the data when we use the estimate from the instrumental variables model rather than OLS. As coastal communities adapt to climate change, we find that the long-term net value of coastal residential property can fall by as much as 52% when erosion rate triples and cost of nourishment sand quadruples.

[1]  Jinyong Hahn,et al.  A New Specification Test for the Validity of Instrumental Variables , 2000 .

[2]  Christopher Timmins,et al.  A revealed preference approach to the measurement of congestion in travel cost models , 2007 .

[3]  S. Rosen.  Hedonic Prices and Implicit Markets: Product Differentiation in Pure Competition , 1974, Journal of Political Economy.

[4]  C. Landry,et al.  Site Congestion in Recreation Choice Models: A Generated Regressors Approach to Beach Site Selection , 2007 .

[5]  Martin D. Smith,et al.  Beach Nourishment as a Dynamic Capital Accumulation Problem , 2007 .

[6]  Richard Hartman,et al.  THE HARVESTING DECISION WHENA STANDING FOREST HAS VALUEA , 1976 .

[7]  Richard A. Davis,et al.  Beaches and Coasts , 2019 .

[8]  Higher waves along U.S. East Coast linked to hurricanes , 2007 .

[9]  C. Landry,et al.  An Economic Evaluation of Beach Erosion Management Alternatives , 2003, Marine Resource Economics.

[10]  J. Pompe.  The Effect of a Gated Community on Property and Beach Amenity Valuation , 2008, Land Economics.

[11]  W. W. Muir,et al.  Regression Diagnostics: Identifying Influential Data and Sources of Collinearity , 1980 .

[12]  A. Cameron,et al.  Microeconometrics: Methods and Applications , 2005 .

[13]  Measuring instrument relevance in the single endogenous regressor–multiple instrument case: a simplifying procedure , 2002 .

[14]  Gary W. Yohe,et al.  Assessing the Economic Cost of Greenhouse-Induced Sea Level Rise: Methods and Application in Support of a National Survey , 1995 .

[15]  J. Pompe.  Establishing Fees for Beach Protection: Paying for a Public Good , 1999 .

[16]  A. Brad Murray,et al.  A unifying framework for shoreline migration: 2. Application to wave‐dominated coasts , 2009 .

[17]  Robert G. Dean,et al.  Beach Nourishment: Theory and Practice , 2003 .

[18]  J. Pompe,et al.  Beach quality and the enhancement of recreational property values. , 1995 .

[19]  Joshua D. Angrist,et al.  Mostly Harmless Econometrics: An Empiricist's Companion , 2008 .

[20]  N. Kraus.  The effects of seawalls on the beach: an extended literature review , 1988 .

[21]  Steven F. Edwards,et al.  Estimating the value of beach recreation from property values: An exploration with comparisons to nourishment costs , 1991 .

[22]  Jeffrey M. Wooldridge,et al.  Solutions Manual and Supplementary Materials for Econometric Analysis of Cross Section and Panel Data , 2003 .

[23]  John Shea,et al.  Instrument Relevance in Multivariate Linear Models: A Simple Measure , 1996, Review of Economics and Statistics.

[24]  H. Pollakowski,et al.  Economic Valuation of Shoreline , 1977 .

[25]  Christopher F. Baum,et al.  Instrumental Variables and GMM: Estimation and Testing , 2003 .

[26]  G. Parsons,et al.  Measuring the Cost of Beach Retreat , 2001 .

[27]  Martin D. Smith,et al.  Synergies between Adjacent Beach-Nourishing Communities in a Morpho-Economic Coupled Coastline Model , 2008 .

[28]  George R. Parsons,et al.  The Opportunity Cost of Coastal Land-Use Controls: An Empirical Analysis , 1991 .

[29]  Warren P. Kriesel,et al.  Estimating the benefits of shore erosion protection in Ohio's Lake Erie Housing Market , 1993 .

[30]  J. Whitehead,et al.  Valuing Beach Access and Width with Revealed and Stated Preference Data , 2008, Marine Resource Economics.

[31]  Craig E. Landry,et al.  Coastal Erosion Management from a Community Economics Perspective: The Feasibility and Efficiency of User Fees , 2005, Journal of Agricultural and Applied Economics.

[32]  Jonathan H. Wright,et al.  A Survey of Weak Instruments and Weak Identification in Generalized Method of Moments , 2002 .

[33]  Thomas W. Crawford,et al.  Viewscapes and Flood Hazard: Coastal Housing Market Response to Amenities and Risk , 2008, Land Economics.

[34]  A. Brad Murray,et al.  Coastline responses to changing storm patterns , 2006 .

[35]  Richard Hartman,et al.  The Harvesting Decision When a Standing Forest Has Value , 1976 .

[36]  Okmyung Bin,et al.  Some Consumer Surplus Estimates for North Carolina Beaches , 2005, Marine Resource Economics.