11/4/18: Social Mobility in the U.S.: Another Chunk of the Facade Goes Down

Via @QZ - share of young Americans living with parents and grandparents is now back to the WW2 levels:

Source: https://qz.com/1248081/the-share-of-americans-age-25-29-living-with-parents-is-the-highest-in-75-years/

No kidding. 33 trillion dollars of economic rescues/stimuli/QE etc and the Great Recovery, the Bull Economy, the Zero Unemployment Goldilocks Era, the MAGA thingy all are a straight line up to rising rates of inter-family subsidies.

24/1/16: House Prices, Local Demand and Homeownership Status

House prices bust was a major dimension of the recent Great Recession around the world. Nonetheless, contrary to all evidence, many political leaders have opted to dismiss the adverse impacts of shocks like negative equity (due to price declines and pre-crisis debt ramp ups) and wealth effects on aggregate demand (first order price effects).

An interesting study based on the U.S. data tests the aggregate impacts of house prices changes on consumption, while controlling for homeownership status (renters v owners).

Titled “House Prices, Local Demand, and Retail Prices” and co-authored by Johannes Stroebel and Joseph Vavra (CESIFO WORKING PAPER NO. 5607, NOVEMBER 2015) the study used “detailed micro data to document a causal response of local retail price to changes in house prices, with elasticities of 15%-20% across housing booms and busts. Notably, these price responses are largest in zip codes with many homeowners, and non-existent in zip codes with mostly renters.”

In other words, not only impacts of house price changes are significant, they are also bifurcated across two types of home occupiers - owners and renters, with renters exhibiting effectively no sensitivity to home prices changes in terms of their demand.

The authors “provide evidence that these retail price responses are driven by changes in markups rather than by changes in local costs. … Markups rise with house prices, particularly in high homeownership locations, because greater housing wealth reduces homeowners’ demand elasticity, and firms raise markups in response. Consistent with this explanation, shopping data confirms that house price changes have opposite effects on the price sensitivity of homeowners and renters.”

Overall, “taken together, our empirical results provide evidence of an important link between changes in household wealth, shopping behavior and firm price-setting. Positive shocks to wealth cause households to become less price-sensitive and firms respond by raising markups and prices.”

So do house prices matter for aggregate demand? They do. Does homeownership smooth or amplify effects of shocks to house prices on the aggregate economy? It appears to amplify them. Should monetary and fiscal policies be asymmetric for areas with high homeownership concentration as opposed to areas with high renters concentration? Yep. Ditto for countries, instead of areas.

Of course, in the Euro area, how does one structure differential monetary policies across countries so diverse as renters-concentrated Germany vs homeowners concentrated Holland or Ireland? Err… can we check that one as yet another problem with Euro architecture?..

4/1/2015: Homeownership, House Prices and Entrepreneurship

Two papers on related topics, the link between enterprise formation and homeownership/mortgages. In the past, I wrote quite a bit about various studies covering these, especially within the context of negative equity impact of reducing entrepreneurship and funding for start ups.

In the first paper, Bracke, Philippe and Hilber, Christian A. L. and Silva, Olmo, "study the link between homeownership, mortgage debt, and entrepreneurship using a model of occupational choice and housing tenure where homeowners commit to mortgage payments."

The paper, titled "Homeownership and Entrepreneurship: The Role of Mortgage Debt and Commitment" (CESifo Working Paper Series No. 5048: http://ssrn.com/abstract=2519463) finds that, from theoretical model perspective, "as long as mortgage rates exceed the rate of interest on liquid wealth [short-term bonds, deposits etc - and this usually is the case in all markets]:

1. mortgage debt, by amplifying risk aversion, diminishes the likelihood that homeowners start a business; 
2. the negative relation between mortgage debt and entrepreneurship is more pronounced when income volatility is higher; and
3. the relation between housing wealth and entrepreneurship is ambiguously signed because of competing portfolio and hedging considerations. 

Empirical analysis by the authors "confirm these predictions. A one standard deviation increase in leverage makes a homeowner 10-12 percent less likely to become an entrepreneur."

So back to negative equity. Negative equity is significantly increasing leverage taken on by the borrower. For example: original mortgage with LTV of 75% set against property price decline of 10% generates leverage increase of 8.3 percentage points. In Irish case, same mortgage (in Dublin case) brought back to current valuations of the property from the peak prices pre-crisis implies a leverage increase of, roughly, 50 percentage points, which is, roughly an increase of 12 standard deviations.


The second study is by Jensen, Thais Laerkholm and Leth‐Petersen, Søren and Nanda, Ramana, titled "Housing Collateral, Credit Constraints and Entrepreneurship - Evidence from a Mortgage Reform" (CEPR Discussion Paper No. DP10260: http://ssrn.com/abstract=2529930). The paper looks at "how a mortgage reform that exogenously increased access to credit had an impact on entrepreneurship, using individual-level micro data from Denmark."

The authors find that "a $30,000 increase in credit availability led to a 12 basis point increase in entrepreneurship, equivalent to a 4% increase in the number of entrepreneurs. New entrants were more likely to start businesses in sectors where they had no prior experience, and were more likely to fail than those who did not benefit from the reform."

What does this mean? "Our results provide evidence that credit constraints do affect entrepreneurship, but that the overall magnitudes are small. Moreover, the marginal individuals selecting into entrepreneurship when constraints are relaxed may well be starting businesses that are of lower quality than the average existing businesses, leading to an increase in churning entry that does not translate into a sustained increase in the overall level of entrepreneurship."

So the study basically shows that mortgage credit constraints in Denmark are not highly important in determining the rate of successful entrepreneurship. But the study covers only intensive margin constraints - in other words it covers credit availability increases over and above normal operating credit markets. This does not help our understanding of what happens in the markets where credit constraints are severe.